|contentType*||enum||the type of content. values are: |
|content||String(JSON)||message content in json format|
|timestamp||long||digital representation of time in milliseconds. for conversion to specific time in time zones around the world.|
*)Indicates that the definition has been modified.
+)Indicates that the fields is newly added.
-)Indicates that the fields has been removed.
PRIVATE GROUP chat has a permission control, see NKP-0016.