def _verify(self, rj, token):
        """
        Verify a signed JSON Web Token

        :param rj: A :py:class:`cryptojwt.jws.JWS` instance
        :param token: The signed JSON Web Token
        :return: A verified message
        """
        keys = self.key_jar.get_jwt_verify_keys(rj.jwt)
        return rj.verify_compact(token, keys)
Verify a signed JSON Web Token

        :param rj: A :py:class:`cryptojwt.jws.JWS` instance
        :param token: The signed JSON Web Token
        :return: A verified message