！！根据消息内容获取用户信息！！

用户向公众号发送消息时，获取消息体的内容如下，请问是否可以根据Uid获取到用户的信息，如账号、邮箱等信息，以便识别用户是谁，谢谢！

[tr][td]{ "ServiceType": "xt", "FromserName": "8920d3a4-2329-13e6-9598-5fg9018c3e6a", "Uid": "8920d3a4-2329-13e6-9598-5fg9018c3e6a",
"PubAccId": "XT-2eeccc59-d42b-639e-bb5f-09feda0sfg7d", "MsgId": "XT-c5dcefa5-5751-4138-bd0a-cd3abd3df65c", "ToUserName": "XT-2eeccc59-d42b-639e-bb5f-09feda0sfg7d",
"Payload": { "Content": "build rubytb" }, "name": "66a93a5", "MsgType": "text", "Eid": "101", "PbToken": "b3fb458efb4501b05d7398783refe27fd1f821be", "CreateTime": "1479869891950"}