Get user id
https://api.sciener.com/v3/user/getUid
1. Description
Name Type Required Description
clientId String Y The app_id which is assigned by system when you create an application
accessToken String Y Access token
date Long Y Current time (timestamp in millisecond)
2.Response
Parameter Type Description
uid Int User id
3.Example of response
{
    "uid": 22556
}