[
  {
    "alg": "ES256",
    "typ": "JWT"
  },
  {
    "merchant id": "1234567890",
    "name": "Ikea DE, Munster",
    "iat": 1516239022,
    "amount": "10000.00",
    "currency": "EUR",
    "transaction": "123456789",
    "purpose": "Ikea Munster cashier 200",
    "iban": "DE77 5143 0300 6228 4500 01",
    "certificate": "https://ikea.de/munster/pos/200/cert.pem"
  },
  {
    "sign": "HxkOk8Ak41h6dvSqQ5hbvr-dSLl82r71R51kF0BumTbsLsyrSFsW8UpdBkxUAfm6-Akr0tq4OmtghoxkDRs93g"
  }
]