RSA-OAEP-256

eyJhbGciOiJSUzI1NiJ9.eyJzdWIiOiJyZXphIiwiZ3JvdXBzIjpbImZvbyJdfQ.pQmFz-N9r1jlDWsnTeyWmzUZiLhvh-II-Gbu6oU8-qcyM56JTcu5iCeZycSUfkUCzJwgaA3s5wOsECbpIAxspXanVk4uso2n1PsW9uFjmdUI95lxe9j1Xdtn5oOm3WLizCkIemrOqllqGCjnkcr62VbUZBWVMVfftMlXT20klWLJvXBNUE9WndcsAG23OOkzVbstZVemXNRkNHHyGEa8MLmarkO78fDOCRDl-BJiGGQbtyF6N7tOlCXZ6dVe5HYZtIJ4ubUEZ3fQb3_KSpRq26P64O-7A3H7z4JakEUkAYtcbfit2QmB2BD-KbNDX9xowfPdT3d1XrK0NaroaWJQ

upn, else preferred_username, else sub