MsgResponse

{
    "attachment": {
        "dur": 0,
        "ext": "string",
        "size": 0,
        "url": "string",
        "md5": "string"
    },
    "message_server_id": 0,
    "sender_id": "string",
    "conversation_type": 0,
    "receiver_id": "string",
    "create_time": 0,
    "message_type": 0,
    "text": "string",
    "team_id": 0,
    "sub_type": 0
}