newMessage real body sent by telegram

{
  "update_id": 661916498,
  "message": {
    "message_id": 78,
    "from": {
      "id": 297927684,
      "is_bot": false,
      "first_name": "Jane",
      "last_name": "Doe",
      "username": "jane_doe"
    },
    "chat": {
      "id": -4545745,
      "title": "Test",
      "type": "group",
      "all_members_are_administrators": true
    },
    "date": 1594569903,
    "text": "/by",
    "entities": [{
      "offset": 0,
      "length": 7,
      "type": "bot_command"
    }]
  }
}