How to define role in token

We have installed Jitsi and to secure it we use the method with jwt token for the access. But now it would be interesting to separate the roles guest or moderator, i.e. to be able to specify in the token what the guest is allowed to do in which room.

According to the docu you can set the room into the token, but unfortunately I didn’t find anything about the role.

The only thing I found was that the one with a token becomes the moderator and without a token they are guests, but this is an open channel without access control.