payload
payload: Readonly<Record<"nonce" | "exp" | "iss" | "aud" | "nbf" | "iat" | "jti" | "azp" | "auth_time" | "at_hash" | "c_hash" | "acr" | "amr" | "sub_jwk" | "cnf" | "sip_from_tag" | "sip_date" | "sip_callid" | "sip_cseq_num" | "sip_via_branch" | "orig" | "dest" | "mky" | "events" | "toe" | "txn" | "rph" | "sid" | "vot" | "vtm" | "attest" | "origid" | "act" | "scope" | "client_id" | "may_act" | "jcard" | "at_use_nbr", string | number>>