Problem on JWT token

Good Afternoon.

I tried to install a JWT token with a "far away" expiration on my application client. I do not understand why this token is rejected.

Usually, the token is rejected when an account is created with google or Facebook "fast sing up" method or when the standard account - created with email and password - is not enabled (the person didn't click on the first email of zoom, the one that is used to verify the email).

This costumers account is enabled, I can create the token but it is rejected by my client.

Do you know a method to verify if the account is really enabled? (in other words to verify if the first mail of Zoom is really clicked).

Thank you so much andrea.