diff --git a/native/android/app/CMakeLists.txt b/native/android/app/CMakeLists.txt
--- a/native/android/app/CMakeLists.txt
+++ b/native/android/app/CMakeLists.txt
@@ -72,6 +72,8 @@
   # comm native mutual code
   ../../cpp/CommonCpp/NativeModules
   ../../cpp/CommonCpp/NativeModules/InternalModules
+  ../../cpp/CommonCpp/NativeModules/PersistentStorageUtilities
+  ../../cpp/CommonCpp/NativeModules/PersistentStorageUtilities/ThreadOperationsUtilities
   ../../cpp/CommonCpp/DatabaseManagers
   ../../cpp/CommonCpp/Tools
   ../../cpp/CommonCpp/grpc/_generated
@@ -80,8 +82,7 @@
 
 # search for all cpp files in this directory
 file(GLOB SQLCIPHER "../../node_modules/@commapp/sqlcipher-amalgamation/src/*.c")
-file(GLOB COMMON_NATIVE_CODE "../../cpp/CommonCpp/**/*.cpp")
-file(GLOB COMMON_NATIVE_INTERNAL "../../cpp/CommonCpp/**/**/*.cpp")
+file(GLOB_RECURSE COMMON_NATIVE_CODE "../../cpp/CommonCpp/**/*.cpp")
 file(GLOB ANDROID_NATIVE_CODE "./src/cpp/*.cpp")
 file(GLOB DOUBLE_CONVERSION_SOURCES "./build/third-party-ndk/double-conversion/double-conversion/*.cc")
 file(GLOB GRPC_CODE "../../cpp/CommonCpp/grpc/_generated/*.cc")
@@ -121,6 +122,10 @@
   ./build/third-party-ndk/folly/folly/String.cpp
   ./build/third-party-ndk/folly/folly/portability/SysUio.cpp
   ./build/third-party-ndk/folly/folly/net/NetOps.cpp
+  ./build/third-party-ndk/folly/folly/dynamic.cpp
+  ./build/third-party-ndk/folly/folly/json.cpp
+  ./build/third-party-ndk/folly/folly/json_pointer.cpp
+  ./build/third-party-ndk/folly/folly/Unicode.cpp
 
   # double-conversion
   ${DOUBLE_CONVERSION_SOURCES}
@@ -130,7 +135,6 @@
   # comm code
   ${ANDROID_NATIVE_CODE}
   ${COMMON_NATIVE_CODE}
-  ${COMMON_NATIVE_INTERNAL}
 )
 
 add_definitions(
diff --git a/native/cpp/CommonCpp/NativeModules/PersistentStorageUtilities/ThreadOperationsUtilities/ThreadOperations.h b/native/cpp/CommonCpp/NativeModules/PersistentStorageUtilities/ThreadOperationsUtilities/ThreadOperations.h
new file mode 100644
--- /dev/null
+++ b/native/cpp/CommonCpp/NativeModules/PersistentStorageUtilities/ThreadOperationsUtilities/ThreadOperations.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include "../../../DatabaseManagers/entities/Thread.h"
+
+#include <string>
+
+namespace comm {
+class ThreadOperations {
+public:
+  static void updateSQLiteUnreadStatus(std::string &threadID, bool unread);
+};
+} // namespace comm
diff --git a/native/cpp/CommonCpp/NativeModules/PersistentStorageUtilities/ThreadOperationsUtilities/ThreadOperations.cpp b/native/cpp/CommonCpp/NativeModules/PersistentStorageUtilities/ThreadOperationsUtilities/ThreadOperations.cpp
new file mode 100644
--- /dev/null
+++ b/native/cpp/CommonCpp/NativeModules/PersistentStorageUtilities/ThreadOperationsUtilities/ThreadOperations.cpp
@@ -0,0 +1,39 @@
+#include "ThreadOperations.h"
+#include "../../../DatabaseManagers/DatabaseManager.h"
+#include "Logger.h"
+#include <folly/String.h>
+#include <folly/json.h>
+#include <stdexcept>
+
+namespace comm {
+void ThreadOperations::updateSQLiteUnreadStatus(
+    std::string &threadID,
+    bool unread) {
+  std::unique_ptr<Thread> thread =
+      DatabaseManager::getQueryExecutor().getThread(threadID);
+  if (thread == nullptr) {
+    throw std::runtime_error(
+        "Attempted to update non-existing thread with ID:  " + threadID);
+  }
+  folly::dynamic updatedCurrentUser;
+  try {
+    updatedCurrentUser = folly::parseJson(thread->current_user);
+  } catch (const folly::json::parse_error &e) {
+    Logger::log(
+        "Invalid json structure of current_user field of thread of id: " +
+        threadID + ". Details: " + std::string(e.what()));
+    return;
+  }
+  updatedCurrentUser["unread"] = unread;
+  try {
+    thread->current_user = folly::toJson(updatedCurrentUser);
+  } catch (const folly::json::parse_error &e) {
+    Logger::log(
+        "Failed to serialize updated current_user JSON object. Details: " +
+        std::string(e.what()));
+    return;
+  }
+
+  DatabaseManager::getQueryExecutor().replaceThread(*thread);
+}
+} // namespace comm