With the old Facebook access tokens (Oauth1) it was possible to get a user's Facebook ID and the token's expiration without passing anything to the server.
Is this possible with the new Oauth2 tokens? Is there any data you can get from the token itself?
I know you can pass at token to /me and get lots of info (assuming the token is still valid) but I am interested in if there is any way to do this exclusively on the client without a network connection and/or with expired tokens.