diff --git a/td/generate/scheme/td_api.tl b/td/generate/scheme/td_api.tl
index 5e227ffb7..b0f344282 100644
--- a/td/generate/scheme/td_api.tl
+++ b/td/generate/scheme/td_api.tl
@@ -2511,6 +2511,9 @@ getTemporaryPasswordState = TemporaryPasswordState;
 //@description Handles a DC_UPDATE push service notification. Can be called before authorization @dc Value of the "dc" parameter of the notification @addr Value of the "addr" parameter of the notification
 processDcUpdate dc:string addr:string = Ok;
 
+//@description Handles a push notification. Can be called before authorization @payload Push notification payload
+processPushNotification payload:string = Ok;
+
 
 //@description Returns the current user
 getMe = User;
diff --git a/td/generate/scheme/td_api.tlo b/td/generate/scheme/td_api.tlo
index 632d9d5cc..ee6a6396b 100644
Binary files a/td/generate/scheme/td_api.tlo and b/td/generate/scheme/td_api.tlo differ
diff --git a/td/telegram/NotificationManager.cpp b/td/telegram/NotificationManager.cpp
index fad8dfeed..bfbf8ec5a 100644
--- a/td/telegram/NotificationManager.cpp
+++ b/td/telegram/NotificationManager.cpp
@@ -1842,6 +1842,11 @@ void NotificationManager::on_notification_default_delay_changed() {
   VLOG(notifications) << "Set notification_default_delay_ms to " << notification_default_delay_ms_;
 }
 
+void NotificationManager::process_push_notification(const string &payload, Promise<Unit> &&promise) {
+  VLOG(notifications) << "Process push notification \"" << payload << '"';
+  promise.set_value(Unit());
+}
+
 void NotificationManager::before_get_difference() {
   if (is_disabled()) {
     return;
diff --git a/td/telegram/NotificationManager.h b/td/telegram/NotificationManager.h
index 288252661..5680939b6 100644
--- a/td/telegram/NotificationManager.h
+++ b/td/telegram/NotificationManager.h
@@ -85,6 +85,8 @@ class NotificationManager : public Actor {
 
   void on_notification_default_delay_changed();
 
+  void process_push_notification(const string &payload, Promise<Unit> &&promise);
+
   void before_get_difference();
 
   void after_get_difference();
diff --git a/td/telegram/Td.cpp b/td/telegram/Td.cpp
index d1f220cde..303d1478c 100644
--- a/td/telegram/Td.cpp
+++ b/td/telegram/Td.cpp
@@ -3220,6 +3220,7 @@ bool Td::is_preinitialization_request(int32 id) {
 bool Td::is_preauthentication_request(int32 id) {
   switch (id) {
     case td_api::processDcUpdate::ID:
+    case td_api::processPushNotification::ID:
     case td_api::getLocalizationTargetInfo::ID:
     case td_api::getLanguagePackStrings::ID:
     case td_api::setCustomLanguagePack::ID:
@@ -4015,6 +4016,7 @@ Status Td::init(DbKey key) {
     complete_pending_preauthentication_requests([](int32 id) {
       switch (id) {
         case td_api::processDcUpdate::ID:
+        case td_api::processPushNotification::ID:
         case td_api::setNetworkType::ID:
         case td_api::getNetworkStatistics::ID:
         case td_api::addNetworkStatistics::ID:
@@ -4691,6 +4693,13 @@ void Td::on_request(uint64 id, td_api::processDcUpdate &request) {
                std::move(promise));
 }
 
+void Td::on_request(uint64 id, td_api::processPushNotification &request) {
+  CLEAN_INPUT_STRING(request.payload_);
+  CREATE_OK_REQUEST_PROMISE();
+  send_closure(G()->notification_manager(), &NotificationManager::process_push_notification,
+               std::move(request.payload_), std::move(promise));
+}
+
 void Td::on_request(uint64 id, td_api::registerDevice &request) {
   CHECK_IS_USER();
   if (request.device_token_ == nullptr) {
diff --git a/td/telegram/Td.h b/td/telegram/Td.h
index d909cabe8..747c8b2a9 100644
--- a/td/telegram/Td.h
+++ b/td/telegram/Td.h
@@ -380,6 +380,8 @@ class Td final : public NetQueryCallback {
 
   void on_request(uint64 id, td_api::processDcUpdate &request);
 
+  void on_request(uint64 id, td_api::processPushNotification &request);
+
   void on_request(uint64 id, td_api::registerDevice &request);
 
   void on_request(uint64 id, td_api::getUserPrivacySettingRules &request);
diff --git a/td/telegram/cli.cpp b/td/telegram/cli.cpp
index 71a9540c0..56a31dec0 100644
--- a/td/telegram/cli.cpp
+++ b/td/telegram/cli.cpp
@@ -1359,6 +1359,8 @@ class CliClient final : public Actor {
       string ip_port;
       std::tie(dc_id, ip_port) = split(args);
       send_request(make_tl_object<td_api::processDcUpdate>(dc_id, ip_port));
+    } else if (op == "ppn") {
+      send_request(make_tl_object<td_api::processPushNotification>(args));
     } else if (op == "rda") {
       send_request(make_tl_object<td_api::registerDevice>(make_tl_object<td_api::deviceTokenApplePush>(args, true),
                                                           as_user_ids("")));
diff --git a/tdutils/td/utils/format.h b/tdutils/td/utils/format.h
index b83a56709..0ca1ce150 100644
--- a/tdutils/td/utils/format.h
+++ b/tdutils/td/utils/format.h
@@ -145,7 +145,7 @@ inline StringBuilder &operator<<(StringBuilder &builder, const Escaped &escaped)
       builder << static_cast<char>(c);
     } else {
       const char *oct = "01234567";
-      builder << "\\0" << oct[c >> 6] << oct[(c >> 3) & 7] << oct[c & 7];
+      builder << '\\' << oct[c >> 6] << oct[(c >> 3) & 7] << oct[c & 7];
     }
   }
   return builder;