{
  "use": "sig",
  "kty": "EC",
  "kid": "pinniped-supervisor-key2",
  "crv": "P-256",
  "alg": "ES256",
  "x"   : "SVqB4JcUD6lsfvqMr-OKUNUphdNn64Eay60978ZlL74",
  "y"   : "lf0u0pMj4lGAzZix5u4Cm5CMQIgMNpkwy163wtKYVKI"
}