TRTC obtains userSig and other information

```javascript WXAPI.trtcUserSig(token) ``` + token current user login credentials ```json { "code": 0, "data": { "sDKAppID": "1400450467", "userID": 1351478, "userSig": "eJwtjFELgjAURv-LfS3srrbpBr0Eq5cKyoJ6NDfzMgqZEkr03xP18Tvn8H3hsk*jjwugYRkhzIdN1r0bKmjAbCUYj5NJ1dZnVU UWNOOIXCCX8WhcW1FwoBPZixE19OoBkwoFMqWmsKZnf3tmubGH0yw35b1oy3zz8CnussXV1L6TfsuPnZROBXPja-j9AW-TL9c_" }, "msg": "success" } ``` + userID User ID of the currently logged in user + sDKAppID sdkappid of background system parameter configuration + userSig SDK is used to evoke TRTC user signatures