I would like to pick this up

sub claim is optional per https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.2

The question is what to use as user id when sub claim is not present.

sub claim is optional per https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.2

The question is what to use as user id when sub claim is not present.

@AlexanderYastrebov
I apologize as I might not be fully aware of the context but do we have any other data that might be suitable in the JWT and if that is not possible we could panic for now and identify the correct key later .
I looked a but deeper there is a UserInfo struct and maybe we can use the username from there

type UserInfo struct {
	Subject       string `json:"sub"`
	Profile       string `json:"profile"`
	Email         string `json:"email"`
	EmailVerified bool   `json:"email_verified"`

	claims []byte
}