A callback button was pressed, and the button data was sent to the bot that created the button
updateBotCallbackQuery#b9cfc48d flags:# query_id:long user_id:long peer:Peer msg_id:int chat_instance:long data:flags.0?bytes game_short_name:flags.1?string = Update;| Name | Type | Description | 
|---|---|---|
| flags | # | Flags, see TL conditional fields | 
| query_id | long | Query ID | 
| user_id | long | ID of the user that pressed the button | 
| peer | Peer | Chat where the inline keyboard was sent | 
| msg_id | int | Message ID | 
| chat_instance | long | Global identifier, uniquely corresponding to the chat to which the message with the callback button was sent. Useful for high scores in games. | 
| data | flags.0?bytes | Callback data | 
| game_short_name | flags.1?string | Short name of a Game to be returned, serves as the unique identifier for the game |