Google Wallet API JWT

{
  "iss": "example_service_account@developer.gserviceaccount.com",
  "aud": "google",
  "typ": "savetowallet",
  "iat": 1368029586,
  "payload": {
    "eventTicketClasses": [{
      ... //Event ticket Class JSON
    }],
    "eventTicketObjects": [{
      // Event ticket Object JSON
    }],
    "flightClasses": [{
      // Flight Class JSON
    }],
    "flightObjects": [{
      // Flight Object JSON
    }],
    "giftCardClasses": [{
      // Gift card Class JSON
    }],
    "giftCardObjects": [{
      // Gift card Object JSON
    }],
    "loyaltyClasses": [{
      // Loyalty Class JSON
    }],
    "loyaltyObjects": [{
      // Loyalty Object JSON
    }],
    "offerClasses": [{
      // Offer Class JSON
    }],
    "offerObjects": [{
      // Offer Object JSON
    }],
    "transitClasses": [{
      // Transit Class JSON
    }],
    "transitObjects": [{
      // Transit Object JSON
    }]
  },
  "origins": ["http://baconrista.com", "https://baconrista.com"]
}