{
    "Cmd": "指令",
    "FromId": "来源id",
    "ToId": "接收id",
    "Ope": "消息通道",
    "Type": "消息类型",
    "Body": "消息内容"
}

字段说明：
Cmd：指令:
    CmdFail 2 通用失败
    CmdSign 3 登录
    CmdSignSuccess 4 登录成功
    CmdReceiveFriendMessage 6 收到好友消息
    CmdWithdrawFriendMessage 7 撤回好友消息
    CmdReceiveFriendAdd 8 收到好友添加请求
    CmdReceiveFriendAddResult 9 收到好友请求结果
    CmdReceiveGroupMessage 10 收到群消息
    CmdWithdrawGroupMessage 11 撤回群消息
    CmdReceiveGroupJoin 12 收到加入群组请求
    CmdReceiveGroupJoinResult 13 收到加入群组结果
    CmdReceiveGroupShot 14 收到被踢出群组通知
FromId：消息发送方id
ToId：消息接收方id，ope=0时为用户id，ope=1是为群组id
Ope：消息通道，OpeFriend 0好友消息，OpeGroup 1群消息, OpeSystem 2系统消息
Type：消息类型，
    TypeText 0 文本消息，
    TypePicture 1 图片，
    TypeVoice 2 语音，
    TypeVideo 3 视频，
    TypeGeo 4 地理位置信息，
    TypeFile 6 文件，
    TypePrompt10 提示消息
Body：消息内容，登录认证时填用户Token

{
    "Cmd": 3,
    "FromId": 0,
    "ToId": 0,
    "Ope": 0,
    "Type": 0,
    "Body": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdCI6MTYxOTE0Mzg0OSwiaWQiOjV9.KQ7dOv6bE_fP5NpMehziesFMsZXDAdVrbYBHyZROw40"
}

{
    "Cmd": 4,
    "FromId": 0,
    "ToId": 0,
    "Ope": 0,
    "Type": 0,
    "Body": "认证成功"
}