https://sandbox.2checkout.com/checkout/api/1/901321305/rs/authService<br>array(6) {
  ["merchantOrderId"]=>
  string(4) "123x"
  ["token"]=>
  NULL
  ["currency"]=>
  string(3) "USD"
  ["total"]=>
  string(5) "10.00"
  ["billingAddr"]=>
  array(8) {
    ["name"]=>
    string(14) "Testing Tester"
    ["addrLine1"]=>
    string(11) "123 Test St"
    ["city"]=>
    string(8) "Columbus"
    ["state"]=>
    string(2) "OH"
    ["zipCode"]=>
    string(5) "43123"
    ["country"]=>
    string(3) "USA"
    ["email"]=>
    string(15) "example@2co.com"
    ["phoneNumber"]=>
    string(12) "555-555-5555"
  }
  ["api"]=>
  string(8) "checkout"
}