{
  "alg": "Ed25519",
  "format": "ZPF1",
  "kid": "df5d4e2d",
  "publicKeyBase58": "935v6nxHxzHSHxexgJ2QNqpgjuHA5Cpf4YPFi4NXnw2J",
  "publicKeyBase64url": "d2Y3C4OqJ1Gv863tTcgiN33_oumkZUCrFaG8GVVcTCs",
  "signs": "zproof-card-v1:<card bytes before the signature>"
}