diff --git a/lib/tfw/networking/__init__.py b/lib/tfw/networking/__init__.py
index c5879b7..c1f3eb4 100644
--- a/lib/tfw/networking/__init__.py
+++ b/lib/tfw/networking/__init__.py
@@ -1,9 +1,9 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
-from .serialization import serialize_tfw_msg, deserialize_tfw_msg, with_deserialize_tfw_msg
+from .serialization import serialize_tfw_msg, deserialize_tfw_msg
+from .serialization import with_deserialize_tfw_msg, message_bytes
 from .zmq_connector_base import ZMQConnectorBase
-# from .controller_connector import ControllerConnector # TODO: readd once controller stuff is resolved
 from .message_sender import MessageSender
 from .event_handlers.server_connector import ServerUplinkConnector as TFWServerConnector
 from .server.tfw_server import TFWServer
diff --git a/lib/tfw/networking/serialization.py b/lib/tfw/networking/serialization.py
index c28eec0..c54609b 100644
--- a/lib/tfw/networking/serialization.py
+++ b/lib/tfw/networking/serialization.py
@@ -67,10 +67,14 @@ def _serialize_single(data):
     (serialize input if it is JSON)
     """
     if not isinstance(data, str):
-        data = json.dumps(data)
+        data = message_bytes(data)
     return _encode_if_needed(data)
 
 
+def message_bytes(message):
+    return json.dumps(message, sort_keys=True).encode()
+
+
 def _deserialize_single(data):
     """
     Try parsing input as JSON, return it as