{
    "mastercard":{
        "cardNumber":"5555555555554444",
        "expDate":"4242",
        "cvc":"412"
    },
    "visa":{
        "cardNumber":"4242424242424242",
        "expDate":"4242",
        "cvc":"412"
    },
    "unionpay":{
        "cardNumber":"6200000000000005",
        "expDate":"1244",
        "cvc":"123"
    },
    "invalidvisa":{
        "cardNumber":"4242424242424141",
        "expDate":"1212",
        "cvc":"12"
    }
}