public function createSubscription($sqsUrl)
 {
     $subscription = new \MWSSubscriptionsService_Model_Subscription();
     $destination = $this->createDestination($sqsUrl);
     $subscription->setDestination($destination);
     $subscription->setNotificationType("AnyOfferChanged");
     $subscription->setIsEnabled(true);
     $request = new \MWSSubscriptionsService_Model_CreateSubscriptionInput();
     $request->setSellerId($this->config->getMerchantId());
     $request->setMarketplaceId($this->config->getMarketPlaceId());
     $request->setSubscription($subscription);
     $response = $this->service->CreateSubscription($request);
     echo $response;
 }
 * responses without calling MWSSubscriptionsService service.
 *
 * Responses are loaded from local XML files. You can tweak XML files to
 * experiment with various outputs during development
 *
 * XML files available under MWSSubscriptionsService/Mock tree
 *
 ***********************************************************************/
// $service = new MWSSubscriptionsService_Mock();
/************************************************************************
 * Setup request parameters and uncomment invoke to try out
 * sample for Create Subscription Action
 ***********************************************************************/
// @TODO: set request. Action can be passed as MWSSubscriptionsService_Model_CreateSubscription
$request = new MWSSubscriptionsService_Model_CreateSubscriptionInput();
$request->setSellerId(MERCHANT_ID);
// object or array of parameters
invokeCreateSubscription($service, $request);
/**
 * Get Create Subscription Action Sample
 * Gets competitive pricing and related information for a product identified by
 * the MarketplaceId and ASIN.
 *
 * @param MWSSubscriptionsService_Interface $service instance of MWSSubscriptionsService_Interface
 * @param mixed $request MWSSubscriptionsService_Model_CreateSubscription or array of parameters
 */
function invokeCreateSubscription(MWSSubscriptionsService_Interface $service, $request)
{
    try {
        $response = $service->CreateSubscription($request);
        echo "Service Response\n";