Request: array (
  'payPalEcSetService_run' => 'true',
  'merchantID' => 'mcgovernrtpptest',
  'merchantReferenceCode' => '20170923163021',
  'purchaseTotals_currency' => 'USD',
  'payPalEcSetService_paypalReturn' => 'http://bob.qwyx.co/cybersource101/samples/PayPal/ECBasic/PayPalEcGetDetailsFlow.php',
  'payPalEcSetService_paypalCancelReturn' => 'http://bob.qwyx.co/cybersource101/samples/PayPal/ECBasic/PayPalEcSetFlow.html',
  'item_0_productCode' => 'TennisRacquet1',
  'item_0_productName' => 'Wilson',
  'item_0_productSKU' => '78901',
  'item_0_quantity' => '1',
  'item_0_unitPrice' => '20.00',
  'item_0_taxAmount' => '0.00',
)