获取消息列表

{
    "code": 0,
    "data": [
        {
            "attachments": [
                {
                    "created_at": "string",
                    "file_name": "string",
                    "file_size": 0,
                    "server_url": "string",
                    "source_url": "string",
                    "ticket_reply_uuid": "string",
                    "ticket_uuid": "string",
                    "uuid": "string"
                }
            ],
            "content": "string",
            "reply_time": "string",
            "reply_type": "client",
            "ticket_uuid": "string",
            "uuid": "string"
        }
    ],
    "message": "string"
}