How do I get connected user information for OAuth2 Zoho Projects?

How do I get connected user information for OAuth2 Zoho Projects?

Hi, 

I need to verify the role of the user connected (by OAuth2) to my third party app , but I don't which URL to poke to obtain that.

I know I can get all users with : 

https://projects.zoho.com/restapi/portal/<redacted>/projects/<redacted>/users/

But what URL would give me ONLY the information of the connected user?