diff --git a/native/cpp/CommonCpp/NativeModules/CommCoreModule.h b/native/cpp/CommonCpp/NativeModules/CommCoreModule.h
--- a/native/cpp/CommonCpp/NativeModules/CommCoreModule.h
+++ b/native/cpp/CommonCpp/NativeModules/CommCoreModule.h
@@ -24,6 +24,8 @@
   CommSecureStore secureStore;
   const std::string secureStoreAccountDataKey = "cryptoAccountDataKey";
   const std::string publicCryptoAccountID = "publicCryptoAccountID";
+  const std::string keyserverHostedContentID = "keyserverHostedContentID";
+  const std::string initialEncryptedMessageContent = "{\"type\": \"init\"}";
   std::unique_ptr<crypto::CryptoModule> cryptoModule;
   DraftStore draftStore;
   ThreadStore threadStore;
@@ -73,6 +75,12 @@
       jsi::String prekey,
       jsi::String prekeySignature,
       jsi::String oneTimeKeys) override;
+  virtual jsi::Value initializeContentSession(
+      jsi::Runtime &rt,
+      jsi::String identityKeys,
+      jsi::String prekey,
+      jsi::String prekeySignature,
+      jsi::String oneTimeKeys) override;
   virtual jsi::Value
   isNotificationsSessionInitialized(jsi::Runtime &rt) override;
   virtual void terminate(jsi::Runtime &rt) override;
diff --git a/native/cpp/CommonCpp/NativeModules/CommCoreModule.cpp b/native/cpp/CommonCpp/NativeModules/CommCoreModule.cpp
--- a/native/cpp/CommonCpp/NativeModules/CommCoreModule.cpp
+++ b/native/cpp/CommonCpp/NativeModules/CommCoreModule.cpp
@@ -650,6 +650,63 @@
       });
 }
 
+jsi::Value CommCoreModule::initializeContentSession(
+    jsi::Runtime &rt,
+    jsi::String identityKeys,
+    jsi::String prekey,
+    jsi::String prekeySignature,
+    jsi::String oneTimeKeys) {
+  auto identityKeysCpp{identityKeys.utf8(rt)};
+  auto prekeyCpp{prekey.utf8(rt)};
+  auto prekeySignatureCpp{prekeySignature.utf8(rt)};
+  auto oneTimeKeysCpp{oneTimeKeys.utf8(rt)};
+  return createPromiseAsJSIValue(
+      rt, [=](jsi::Runtime &innerRt, std::shared_ptr<Promise> promise) {
+        taskType job = [=, &innerRt]() {
+          std::string error;
+          crypto::EncryptedData result;
+          folly::Optional<std::string> storedSecretKey =
+              this->secureStore.get(this->secureStoreAccountDataKey);
+          if (!storedSecretKey.hasValue()) {
+            error = "storedSecretKey is not available";
+          } else if (this->cryptoModule == nullptr) {
+            error = "user has not been initialized";
+          } else {
+            try {
+              this->cryptoModule->initializeOutboundForSendingSession(
+                  this->keyserverHostedContentID,
+                  std::vector<uint8_t>(
+                      identityKeysCpp.begin(), identityKeysCpp.end()),
+                  std::vector<uint8_t>(prekeyCpp.begin(), prekeyCpp.end()),
+                  std::vector<uint8_t>(
+                      prekeySignatureCpp.begin(), prekeySignatureCpp.end()),
+                  std::vector<uint8_t>(
+                      oneTimeKeysCpp.begin(), oneTimeKeysCpp.end()));
+              result = this->cryptoModule->encrypt(
+                  this->keyserverHostedContentID,
+                  this->initialEncryptedMessageContent);
+              crypto::Persist newPersist =
+                  this->cryptoModule->storeAsB64(storedSecretKey.value());
+              DatabaseManager::getQueryExecutor().storeOlmPersistData(
+                  newPersist);
+            } catch (const std::exception &e) {
+              error = e.what();
+            }
+          }
+          this->jsInvoker_->invokeAsync([=, &innerRt]() {
+            if (error.size()) {
+              promise->reject(error);
+              return;
+            }
+            promise->resolve(jsi::String::createFromUtf8(
+                innerRt,
+                std::string{result.message.begin(), result.message.end()}));
+          });
+        };
+        this->cryptoThread->scheduleTask(job);
+      });
+}
+
 jsi::Value CommCoreModule::isNotificationsSessionInitialized(jsi::Runtime &rt) {
   return createPromiseAsJSIValue(
       rt, [=](jsi::Runtime &innerRt, std::shared_ptr<Promise> promise) {
diff --git a/native/cpp/CommonCpp/_generated/commJSI-generated.cpp b/native/cpp/CommonCpp/_generated/commJSI-generated.cpp
--- a/native/cpp/CommonCpp/_generated/commJSI-generated.cpp
+++ b/native/cpp/CommonCpp/_generated/commJSI-generated.cpp
@@ -75,6 +75,9 @@
 static jsi::Value __hostFunction_CommCoreModuleSchemaCxxSpecJSI_initializeNotificationsSession(jsi::Runtime &rt, TurboModule &turboModule, const jsi::Value* args, size_t count) {
   return static_cast<CommCoreModuleSchemaCxxSpecJSI *>(&turboModule)->initializeNotificationsSession(rt, args[0].asString(rt), args[1].asString(rt), args[2].asString(rt), args[3].asString(rt));
 }
+static jsi::Value __hostFunction_CommCoreModuleSchemaCxxSpecJSI_initializeContentSession(jsi::Runtime &rt, TurboModule &turboModule, const jsi::Value* args, size_t count) {
+  return static_cast<CommCoreModuleSchemaCxxSpecJSI *>(&turboModule)->initializeContentSession(rt, args[0].asString(rt), args[1].asString(rt), args[2].asString(rt), args[3].asString(rt));
+}
 static jsi::Value __hostFunction_CommCoreModuleSchemaCxxSpecJSI_isNotificationsSessionInitialized(jsi::Runtime &rt, TurboModule &turboModule, const jsi::Value* args, size_t count) {
   return static_cast<CommCoreModuleSchemaCxxSpecJSI *>(&turboModule)->isNotificationsSessionInitialized(rt);
 }
@@ -154,6 +157,7 @@
   methodMap_["getNotificationsOneTimeKeys"] = MethodMetadata {1, __hostFunction_CommCoreModuleSchemaCxxSpecJSI_getNotificationsOneTimeKeys};
   methodMap_["generateAndGetPrekeys"] = MethodMetadata {0, __hostFunction_CommCoreModuleSchemaCxxSpecJSI_generateAndGetPrekeys};
   methodMap_["initializeNotificationsSession"] = MethodMetadata {4, __hostFunction_CommCoreModuleSchemaCxxSpecJSI_initializeNotificationsSession};
+  methodMap_["initializeContentSession"] = MethodMetadata {4, __hostFunction_CommCoreModuleSchemaCxxSpecJSI_initializeContentSession};
   methodMap_["isNotificationsSessionInitialized"] = MethodMetadata {0, __hostFunction_CommCoreModuleSchemaCxxSpecJSI_isNotificationsSessionInitialized};
   methodMap_["getCodeVersion"] = MethodMetadata {0, __hostFunction_CommCoreModuleSchemaCxxSpecJSI_getCodeVersion};
   methodMap_["terminate"] = MethodMetadata {0, __hostFunction_CommCoreModuleSchemaCxxSpecJSI_terminate};
diff --git a/native/cpp/CommonCpp/_generated/commJSI.h b/native/cpp/CommonCpp/_generated/commJSI.h
--- a/native/cpp/CommonCpp/_generated/commJSI.h
+++ b/native/cpp/CommonCpp/_generated/commJSI.h
@@ -40,6 +40,7 @@
   virtual jsi::Value getNotificationsOneTimeKeys(jsi::Runtime &rt, double oneTimeKeysAmount) = 0;
   virtual jsi::Value generateAndGetPrekeys(jsi::Runtime &rt) = 0;
   virtual jsi::Value initializeNotificationsSession(jsi::Runtime &rt, jsi::String identityKeys, jsi::String prekey, jsi::String prekeySignature, jsi::String oneTimeKeys) = 0;
+  virtual jsi::Value initializeContentSession(jsi::Runtime &rt, jsi::String identityKeys, jsi::String prekey, jsi::String prekeySignature, jsi::String oneTimeKeys) = 0;
   virtual jsi::Value isNotificationsSessionInitialized(jsi::Runtime &rt) = 0;
   virtual double getCodeVersion(jsi::Runtime &rt) = 0;
   virtual void terminate(jsi::Runtime &rt) = 0;
@@ -239,6 +240,14 @@
       return bridging::callFromJs<jsi::Value>(
           rt, &T::initializeNotificationsSession, jsInvoker_, instance_, std::move(identityKeys), std::move(prekey), std::move(prekeySignature), std::move(oneTimeKeys));
     }
+    jsi::Value initializeContentSession(jsi::Runtime &rt, jsi::String identityKeys, jsi::String prekey, jsi::String prekeySignature, jsi::String oneTimeKeys) override {
+      static_assert(
+          bridging::getParameterCount(&T::initializeContentSession) == 5,
+          "Expected initializeContentSession(...) to have 5 parameters");
+
+      return bridging::callFromJs<jsi::Value>(
+          rt, &T::initializeContentSession, jsInvoker_, instance_, std::move(identityKeys), std::move(prekey), std::move(prekeySignature), std::move(oneTimeKeys));
+    }
     jsi::Value isNotificationsSessionInitialized(jsi::Runtime &rt) override {
       static_assert(
           bridging::getParameterCount(&T::isNotificationsSessionInitialized) == 1,
diff --git a/native/schema/CommCoreModuleSchema.js b/native/schema/CommCoreModuleSchema.js
--- a/native/schema/CommCoreModuleSchema.js
+++ b/native/schema/CommCoreModuleSchema.js
@@ -84,6 +84,12 @@
     prekeySignature: string,
     oneTimeKeys: string,
   ) => Promise<string>;
+  +initializeContentSession: (
+    identityKeys: string,
+    prekey: string,
+    prekeySignature: string,
+    oneTimeKeys: string,
+  ) => Promise<string>;
   +isNotificationsSessionInitialized: () => Promise<boolean>;
   +getCodeVersion: () => number;
   +terminate: () => void;