@startwbs
* Messages
** To server packed (protobuf) 
*** Encrypted server message and signature (binary data)
**** ToServerMessage (protobuf)
***** Encrypted user message and signature
****** UserMessage (protobuf)
** From server packed (protobuf) 
*** Encrypted server message and signature (binary data)
**** FromServerMessage (protobuf)
***** Encrypted user message and signature
****** UserMessage (protobuf)
@endwbs