diff --git a/proto/mediums/nfc_frames.pb.cc b/proto/mediums/nfc_frames.pb.cc
new file mode 100644
index 00000000..4bf6bbbf
--- /dev/null
+++ b/proto/mediums/nfc_frames.pb.cc
@@ -0,0 +1,646 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: proto/mediums/nfc_frames.proto
+
+#include "proto/mediums/nfc_frames.pb.h"
+
+#include <algorithm>
+
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/extension_set.h>
+#include <google/protobuf/wire_format_lite.h>
+#include <google/protobuf/io/zero_copy_stream_impl_lite.h>
+// @@protoc_insertion_point(includes)
+#include <google/protobuf/port_def.inc>
+
+PROTOBUF_PRAGMA_INIT_SEG
+namespace location {
+namespace nearby {
+namespace mediums {
+constexpr AdvertisementData::AdvertisementData(
+  ::PROTOBUF_NAMESPACE_ID::internal::ConstantInitialized)
+  : tag_(&::PROTOBUF_NAMESPACE_ID::internal::fixed_address_empty_string)
+  , public_key_(&::PROTOBUF_NAMESPACE_ID::internal::fixed_address_empty_string){}
+struct AdvertisementDataDefaultTypeInternal {
+  constexpr AdvertisementDataDefaultTypeInternal()
+    : _instance(::PROTOBUF_NAMESPACE_ID::internal::ConstantInitialized{}) {}
+  ~AdvertisementDataDefaultTypeInternal() {}
+  union {
+    AdvertisementData _instance;
+  };
+};
+PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT AdvertisementDataDefaultTypeInternal _AdvertisementData_default_instance_;
+constexpr AdvertisementRequest::AdvertisementRequest(
+  ::PROTOBUF_NAMESPACE_ID::internal::ConstantInitialized)
+  : service_id_(&::PROTOBUF_NAMESPACE_ID::internal::fixed_address_empty_string)
+  , endpoint_id_(&::PROTOBUF_NAMESPACE_ID::internal::fixed_address_empty_string)
+  , public_key_(&::PROTOBUF_NAMESPACE_ID::internal::fixed_address_empty_string){}
+struct AdvertisementRequestDefaultTypeInternal {
+  constexpr AdvertisementRequestDefaultTypeInternal()
+    : _instance(::PROTOBUF_NAMESPACE_ID::internal::ConstantInitialized{}) {}
+  ~AdvertisementRequestDefaultTypeInternal() {}
+  union {
+    AdvertisementRequest _instance;
+  };
+};
+PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT AdvertisementRequestDefaultTypeInternal _AdvertisementRequest_default_instance_;
+}  // namespace mediums
+}  // namespace nearby
+}  // namespace location
+namespace location {
+namespace nearby {
+namespace mediums {
+
+// ===================================================================
+
+class AdvertisementData::_Internal {
+ public:
+  using HasBits = decltype(std::declval<AdvertisementData>()._has_bits_);
+  static void set_has_tag(HasBits* has_bits) {
+    (*has_bits)[0] |= 1u;
+  }
+  static void set_has_public_key(HasBits* has_bits) {
+    (*has_bits)[0] |= 2u;
+  }
+};
+
+AdvertisementData::AdvertisementData(::PROTOBUF_NAMESPACE_ID::Arena* arena,
+                         bool is_message_owned)
+  : ::PROTOBUF_NAMESPACE_ID::MessageLite(arena, is_message_owned) {
+  SharedCtor();
+  if (!is_message_owned) {
+    RegisterArenaDtor(arena);
+  }
+  // @@protoc_insertion_point(arena_constructor:location.nearby.mediums.AdvertisementData)
+}
+AdvertisementData::AdvertisementData(const AdvertisementData& from)
+  : ::PROTOBUF_NAMESPACE_ID::MessageLite(),
+      _has_bits_(from._has_bits_) {
+  _internal_metadata_.MergeFrom<std::string>(from._internal_metadata_);
+  tag_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    tag_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (from._internal_has_tag()) {
+    tag_.Set(::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::EmptyDefault{}, from._internal_tag(), 
+      GetArenaForAllocation());
+  }
+  public_key_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    public_key_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (from._internal_has_public_key()) {
+    public_key_.Set(::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::EmptyDefault{}, from._internal_public_key(), 
+      GetArenaForAllocation());
+  }
+  // @@protoc_insertion_point(copy_constructor:location.nearby.mediums.AdvertisementData)
+}
+
+inline void AdvertisementData::SharedCtor() {
+tag_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  tag_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+public_key_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  public_key_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+}
+
+AdvertisementData::~AdvertisementData() {
+  // @@protoc_insertion_point(destructor:location.nearby.mediums.AdvertisementData)
+  if (GetArenaForAllocation() != nullptr) return;
+  SharedDtor();
+  _internal_metadata_.Delete<std::string>();
+}
+
+inline void AdvertisementData::SharedDtor() {
+  GOOGLE_DCHECK(GetArenaForAllocation() == nullptr);
+  tag_.DestroyNoArena(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+  public_key_.DestroyNoArena(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+}
+
+void AdvertisementData::ArenaDtor(void* object) {
+  AdvertisementData* _this = reinterpret_cast< AdvertisementData* >(object);
+  (void)_this;
+}
+void AdvertisementData::RegisterArenaDtor(::PROTOBUF_NAMESPACE_ID::Arena*) {
+}
+void AdvertisementData::SetCachedSize(int size) const {
+  _cached_size_.Set(size);
+}
+
+void AdvertisementData::Clear() {
+// @@protoc_insertion_point(message_clear_start:location.nearby.mediums.AdvertisementData)
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  cached_has_bits = _has_bits_[0];
+  if (cached_has_bits & 0x00000003u) {
+    if (cached_has_bits & 0x00000001u) {
+      tag_.ClearNonDefaultToEmpty();
+    }
+    if (cached_has_bits & 0x00000002u) {
+      public_key_.ClearNonDefaultToEmpty();
+    }
+  }
+  _has_bits_.Clear();
+  _internal_metadata_.Clear<std::string>();
+}
+
+const char* AdvertisementData::_InternalParse(const char* ptr, ::PROTOBUF_NAMESPACE_ID::internal::ParseContext* ctx) {
+#define CHK_(x) if (PROTOBUF_PREDICT_FALSE(!(x))) goto failure
+  _Internal::HasBits has_bits{};
+  while (!ctx->Done(&ptr)) {
+    uint32_t tag;
+    ptr = ::PROTOBUF_NAMESPACE_ID::internal::ReadTag(ptr, &tag);
+    switch (tag >> 3) {
+      // optional bytes tag = 1;
+      case 1:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 10)) {
+          auto str = _internal_mutable_tag();
+          ptr = ::PROTOBUF_NAMESPACE_ID::internal::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      // optional bytes public_key = 2;
+      case 2:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 18)) {
+          auto str = _internal_mutable_public_key();
+          ptr = ::PROTOBUF_NAMESPACE_ID::internal::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      default:
+        goto handle_unusual;
+    }  // switch
+  handle_unusual:
+    if ((tag == 0) || ((tag & 7) == 4)) {
+      CHK_(ptr);
+      ctx->SetLastTag(tag);
+      goto message_done;
+    }
+    ptr = UnknownFieldParse(
+        tag,
+        _internal_metadata_.mutable_unknown_fields<std::string>(),
+        ptr, ctx);
+    CHK_(ptr != nullptr);
+  }  // while
+message_done:
+  _has_bits_.Or(has_bits);
+  return ptr;
+failure:
+  ptr = nullptr;
+  goto message_done;
+#undef CHK_
+}
+
+uint8_t* AdvertisementData::_InternalSerialize(
+    uint8_t* target, ::PROTOBUF_NAMESPACE_ID::io::EpsCopyOutputStream* stream) const {
+  // @@protoc_insertion_point(serialize_to_array_start:location.nearby.mediums.AdvertisementData)
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  cached_has_bits = _has_bits_[0];
+  // optional bytes tag = 1;
+  if (cached_has_bits & 0x00000001u) {
+    target = stream->WriteBytesMaybeAliased(
+        1, this->_internal_tag(), target);
+  }
+
+  // optional bytes public_key = 2;
+  if (cached_has_bits & 0x00000002u) {
+    target = stream->WriteBytesMaybeAliased(
+        2, this->_internal_public_key(), target);
+  }
+
+  if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
+    target = stream->WriteRaw(_internal_metadata_.unknown_fields<std::string>(::PROTOBUF_NAMESPACE_ID::internal::GetEmptyString).data(),
+        static_cast<int>(_internal_metadata_.unknown_fields<std::string>(::PROTOBUF_NAMESPACE_ID::internal::GetEmptyString).size()), target);
+  }
+  // @@protoc_insertion_point(serialize_to_array_end:location.nearby.mediums.AdvertisementData)
+  return target;
+}
+
+size_t AdvertisementData::ByteSizeLong() const {
+// @@protoc_insertion_point(message_byte_size_start:location.nearby.mediums.AdvertisementData)
+  size_t total_size = 0;
+
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  cached_has_bits = _has_bits_[0];
+  if (cached_has_bits & 0x00000003u) {
+    // optional bytes tag = 1;
+    if (cached_has_bits & 0x00000001u) {
+      total_size += 1 +
+        ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::BytesSize(
+          this->_internal_tag());
+    }
+
+    // optional bytes public_key = 2;
+    if (cached_has_bits & 0x00000002u) {
+      total_size += 1 +
+        ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::BytesSize(
+          this->_internal_public_key());
+    }
+
+  }
+  if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
+    total_size += _internal_metadata_.unknown_fields<std::string>(::PROTOBUF_NAMESPACE_ID::internal::GetEmptyString).size();
+  }
+  int cached_size = ::PROTOBUF_NAMESPACE_ID::internal::ToCachedSize(total_size);
+  SetCachedSize(cached_size);
+  return total_size;
+}
+
+void AdvertisementData::CheckTypeAndMergeFrom(
+    const ::PROTOBUF_NAMESPACE_ID::MessageLite& from) {
+  MergeFrom(*::PROTOBUF_NAMESPACE_ID::internal::DownCast<const AdvertisementData*>(
+      &from));
+}
+
+void AdvertisementData::MergeFrom(const AdvertisementData& from) {
+// @@protoc_insertion_point(class_specific_merge_from_start:location.nearby.mediums.AdvertisementData)
+  GOOGLE_DCHECK_NE(&from, this);
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  cached_has_bits = from._has_bits_[0];
+  if (cached_has_bits & 0x00000003u) {
+    if (cached_has_bits & 0x00000001u) {
+      _internal_set_tag(from._internal_tag());
+    }
+    if (cached_has_bits & 0x00000002u) {
+      _internal_set_public_key(from._internal_public_key());
+    }
+  }
+  _internal_metadata_.MergeFrom<std::string>(from._internal_metadata_);
+}
+
+void AdvertisementData::CopyFrom(const AdvertisementData& from) {
+// @@protoc_insertion_point(class_specific_copy_from_start:location.nearby.mediums.AdvertisementData)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool AdvertisementData::IsInitialized() const {
+  return true;
+}
+
+void AdvertisementData::InternalSwap(AdvertisementData* other) {
+  using std::swap;
+  auto* lhs_arena = GetArenaForAllocation();
+  auto* rhs_arena = other->GetArenaForAllocation();
+  _internal_metadata_.InternalSwap(&other->_internal_metadata_);
+  swap(_has_bits_[0], other->_has_bits_[0]);
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(),
+      &tag_, lhs_arena,
+      &other->tag_, rhs_arena
+  );
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(),
+      &public_key_, lhs_arena,
+      &other->public_key_, rhs_arena
+  );
+}
+
+std::string AdvertisementData::GetTypeName() const {
+  return "location.nearby.mediums.AdvertisementData";
+}
+
+
+// ===================================================================
+
+class AdvertisementRequest::_Internal {
+ public:
+  using HasBits = decltype(std::declval<AdvertisementRequest>()._has_bits_);
+  static void set_has_service_id(HasBits* has_bits) {
+    (*has_bits)[0] |= 1u;
+  }
+  static void set_has_endpoint_id(HasBits* has_bits) {
+    (*has_bits)[0] |= 2u;
+  }
+  static void set_has_public_key(HasBits* has_bits) {
+    (*has_bits)[0] |= 4u;
+  }
+};
+
+AdvertisementRequest::AdvertisementRequest(::PROTOBUF_NAMESPACE_ID::Arena* arena,
+                         bool is_message_owned)
+  : ::PROTOBUF_NAMESPACE_ID::MessageLite(arena, is_message_owned) {
+  SharedCtor();
+  if (!is_message_owned) {
+    RegisterArenaDtor(arena);
+  }
+  // @@protoc_insertion_point(arena_constructor:location.nearby.mediums.AdvertisementRequest)
+}
+AdvertisementRequest::AdvertisementRequest(const AdvertisementRequest& from)
+  : ::PROTOBUF_NAMESPACE_ID::MessageLite(),
+      _has_bits_(from._has_bits_) {
+  _internal_metadata_.MergeFrom<std::string>(from._internal_metadata_);
+  service_id_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    service_id_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (from._internal_has_service_id()) {
+    service_id_.Set(::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::EmptyDefault{}, from._internal_service_id(), 
+      GetArenaForAllocation());
+  }
+  endpoint_id_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    endpoint_id_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (from._internal_has_endpoint_id()) {
+    endpoint_id_.Set(::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::EmptyDefault{}, from._internal_endpoint_id(), 
+      GetArenaForAllocation());
+  }
+  public_key_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    public_key_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (from._internal_has_public_key()) {
+    public_key_.Set(::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::EmptyDefault{}, from._internal_public_key(), 
+      GetArenaForAllocation());
+  }
+  // @@protoc_insertion_point(copy_constructor:location.nearby.mediums.AdvertisementRequest)
+}
+
+inline void AdvertisementRequest::SharedCtor() {
+service_id_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  service_id_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+endpoint_id_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  endpoint_id_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+public_key_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  public_key_.Set(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(), "", GetArenaForAllocation());
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+}
+
+AdvertisementRequest::~AdvertisementRequest() {
+  // @@protoc_insertion_point(destructor:location.nearby.mediums.AdvertisementRequest)
+  if (GetArenaForAllocation() != nullptr) return;
+  SharedDtor();
+  _internal_metadata_.Delete<std::string>();
+}
+
+inline void AdvertisementRequest::SharedDtor() {
+  GOOGLE_DCHECK(GetArenaForAllocation() == nullptr);
+  service_id_.DestroyNoArena(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+  endpoint_id_.DestroyNoArena(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+  public_key_.DestroyNoArena(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
+}
+
+void AdvertisementRequest::ArenaDtor(void* object) {
+  AdvertisementRequest* _this = reinterpret_cast< AdvertisementRequest* >(object);
+  (void)_this;
+}
+void AdvertisementRequest::RegisterArenaDtor(::PROTOBUF_NAMESPACE_ID::Arena*) {
+}
+void AdvertisementRequest::SetCachedSize(int size) const {
+  _cached_size_.Set(size);
+}
+
+void AdvertisementRequest::Clear() {
+// @@protoc_insertion_point(message_clear_start:location.nearby.mediums.AdvertisementRequest)
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  cached_has_bits = _has_bits_[0];
+  if (cached_has_bits & 0x00000007u) {
+    if (cached_has_bits & 0x00000001u) {
+      service_id_.ClearNonDefaultToEmpty();
+    }
+    if (cached_has_bits & 0x00000002u) {
+      endpoint_id_.ClearNonDefaultToEmpty();
+    }
+    if (cached_has_bits & 0x00000004u) {
+      public_key_.ClearNonDefaultToEmpty();
+    }
+  }
+  _has_bits_.Clear();
+  _internal_metadata_.Clear<std::string>();
+}
+
+const char* AdvertisementRequest::_InternalParse(const char* ptr, ::PROTOBUF_NAMESPACE_ID::internal::ParseContext* ctx) {
+#define CHK_(x) if (PROTOBUF_PREDICT_FALSE(!(x))) goto failure
+  _Internal::HasBits has_bits{};
+  while (!ctx->Done(&ptr)) {
+    uint32_t tag;
+    ptr = ::PROTOBUF_NAMESPACE_ID::internal::ReadTag(ptr, &tag);
+    switch (tag >> 3) {
+      // optional string service_id = 1;
+      case 1:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 10)) {
+          auto str = _internal_mutable_service_id();
+          ptr = ::PROTOBUF_NAMESPACE_ID::internal::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      // optional string endpoint_id = 2;
+      case 2:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 18)) {
+          auto str = _internal_mutable_endpoint_id();
+          ptr = ::PROTOBUF_NAMESPACE_ID::internal::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      // optional bytes public_key = 3;
+      case 3:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 26)) {
+          auto str = _internal_mutable_public_key();
+          ptr = ::PROTOBUF_NAMESPACE_ID::internal::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      default:
+        goto handle_unusual;
+    }  // switch
+  handle_unusual:
+    if ((tag == 0) || ((tag & 7) == 4)) {
+      CHK_(ptr);
+      ctx->SetLastTag(tag);
+      goto message_done;
+    }
+    ptr = UnknownFieldParse(
+        tag,
+        _internal_metadata_.mutable_unknown_fields<std::string>(),
+        ptr, ctx);
+    CHK_(ptr != nullptr);
+  }  // while
+message_done:
+  _has_bits_.Or(has_bits);
+  return ptr;
+failure:
+  ptr = nullptr;
+  goto message_done;
+#undef CHK_
+}
+
+uint8_t* AdvertisementRequest::_InternalSerialize(
+    uint8_t* target, ::PROTOBUF_NAMESPACE_ID::io::EpsCopyOutputStream* stream) const {
+  // @@protoc_insertion_point(serialize_to_array_start:location.nearby.mediums.AdvertisementRequest)
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  cached_has_bits = _has_bits_[0];
+  // optional string service_id = 1;
+  if (cached_has_bits & 0x00000001u) {
+    target = stream->WriteStringMaybeAliased(
+        1, this->_internal_service_id(), target);
+  }
+
+  // optional string endpoint_id = 2;
+  if (cached_has_bits & 0x00000002u) {
+    target = stream->WriteStringMaybeAliased(
+        2, this->_internal_endpoint_id(), target);
+  }
+
+  // optional bytes public_key = 3;
+  if (cached_has_bits & 0x00000004u) {
+    target = stream->WriteBytesMaybeAliased(
+        3, this->_internal_public_key(), target);
+  }
+
+  if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
+    target = stream->WriteRaw(_internal_metadata_.unknown_fields<std::string>(::PROTOBUF_NAMESPACE_ID::internal::GetEmptyString).data(),
+        static_cast<int>(_internal_metadata_.unknown_fields<std::string>(::PROTOBUF_NAMESPACE_ID::internal::GetEmptyString).size()), target);
+  }
+  // @@protoc_insertion_point(serialize_to_array_end:location.nearby.mediums.AdvertisementRequest)
+  return target;
+}
+
+size_t AdvertisementRequest::ByteSizeLong() const {
+// @@protoc_insertion_point(message_byte_size_start:location.nearby.mediums.AdvertisementRequest)
+  size_t total_size = 0;
+
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  cached_has_bits = _has_bits_[0];
+  if (cached_has_bits & 0x00000007u) {
+    // optional string service_id = 1;
+    if (cached_has_bits & 0x00000001u) {
+      total_size += 1 +
+        ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::StringSize(
+          this->_internal_service_id());
+    }
+
+    // optional string endpoint_id = 2;
+    if (cached_has_bits & 0x00000002u) {
+      total_size += 1 +
+        ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::StringSize(
+          this->_internal_endpoint_id());
+    }
+
+    // optional bytes public_key = 3;
+    if (cached_has_bits & 0x00000004u) {
+      total_size += 1 +
+        ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::BytesSize(
+          this->_internal_public_key());
+    }
+
+  }
+  if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
+    total_size += _internal_metadata_.unknown_fields<std::string>(::PROTOBUF_NAMESPACE_ID::internal::GetEmptyString).size();
+  }
+  int cached_size = ::PROTOBUF_NAMESPACE_ID::internal::ToCachedSize(total_size);
+  SetCachedSize(cached_size);
+  return total_size;
+}
+
+void AdvertisementRequest::CheckTypeAndMergeFrom(
+    const ::PROTOBUF_NAMESPACE_ID::MessageLite& from) {
+  MergeFrom(*::PROTOBUF_NAMESPACE_ID::internal::DownCast<const AdvertisementRequest*>(
+      &from));
+}
+
+void AdvertisementRequest::MergeFrom(const AdvertisementRequest& from) {
+// @@protoc_insertion_point(class_specific_merge_from_start:location.nearby.mediums.AdvertisementRequest)
+  GOOGLE_DCHECK_NE(&from, this);
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  cached_has_bits = from._has_bits_[0];
+  if (cached_has_bits & 0x00000007u) {
+    if (cached_has_bits & 0x00000001u) {
+      _internal_set_service_id(from._internal_service_id());
+    }
+    if (cached_has_bits & 0x00000002u) {
+      _internal_set_endpoint_id(from._internal_endpoint_id());
+    }
+    if (cached_has_bits & 0x00000004u) {
+      _internal_set_public_key(from._internal_public_key());
+    }
+  }
+  _internal_metadata_.MergeFrom<std::string>(from._internal_metadata_);
+}
+
+void AdvertisementRequest::CopyFrom(const AdvertisementRequest& from) {
+// @@protoc_insertion_point(class_specific_copy_from_start:location.nearby.mediums.AdvertisementRequest)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool AdvertisementRequest::IsInitialized() const {
+  return true;
+}
+
+void AdvertisementRequest::InternalSwap(AdvertisementRequest* other) {
+  using std::swap;
+  auto* lhs_arena = GetArenaForAllocation();
+  auto* rhs_arena = other->GetArenaForAllocation();
+  _internal_metadata_.InternalSwap(&other->_internal_metadata_);
+  swap(_has_bits_[0], other->_has_bits_[0]);
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(),
+      &service_id_, lhs_arena,
+      &other->service_id_, rhs_arena
+  );
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(),
+      &endpoint_id_, lhs_arena,
+      &other->endpoint_id_, rhs_arena
+  );
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited(),
+      &public_key_, lhs_arena,
+      &other->public_key_, rhs_arena
+  );
+}
+
+std::string AdvertisementRequest::GetTypeName() const {
+  return "location.nearby.mediums.AdvertisementRequest";
+}
+
+
+// @@protoc_insertion_point(namespace_scope)
+}  // namespace mediums
+}  // namespace nearby
+}  // namespace location
+PROTOBUF_NAMESPACE_OPEN
+template<> PROTOBUF_NOINLINE ::location::nearby::mediums::AdvertisementData* Arena::CreateMaybeMessage< ::location::nearby::mediums::AdvertisementData >(Arena* arena) {
+  return Arena::CreateMessageInternal< ::location::nearby::mediums::AdvertisementData >(arena);
+}
+template<> PROTOBUF_NOINLINE ::location::nearby::mediums::AdvertisementRequest* Arena::CreateMaybeMessage< ::location::nearby::mediums::AdvertisementRequest >(Arena* arena) {
+  return Arena::CreateMessageInternal< ::location::nearby::mediums::AdvertisementRequest >(arena);
+}
+PROTOBUF_NAMESPACE_CLOSE
+
+// @@protoc_insertion_point(global_scope)
+#include <google/protobuf/port_undef.inc>