src/User/Controller/UserController.php
public function classifiedAnswerAction() 
	{
		$request = $this->getRequest();
		$response = $this->getResponse();
		
		// Accept only post request
		if(!$request->isPost()) {
		    $response->setStatusCode(Response::STATUS_CODE_500);
		    return new JsonModel(array(
				'status' => 'danger',
				'message' => 'Invalid method call'
			));
		}
		
		$userService = $this->getServiceLocator()->get('user.service.user');
		$data = array_merge_recursive(
			$this->params()->fromPost(),
			Json::decode($request->getContent(), Json::TYPE_ARRAY)
		);
		
		try {
		    $response->setStatusCode(Response::STATUS_CODE_200);
		    $userService->classifiedAnswer($data);
		    $returnData = array(
		        'status' => 'success',
		        'message' => 'La tua risposta è stata inviata!'
		    );
		} catch(\Exception $e) {
		    $response->setStatusCode(Response::STATUS_CODE_500);
			$returnData = @unserialize($e->getMessage());
			
			if(!is_array($returnData)) {
				$returnData = array(
					'status' => 'danger',
					'message' => $e->getMessage()
				);
			}
		}
		
		return new JsonModel($returnData);
	}
public function classifiedAnswerAction() 
	{
		$request = $this->getRequest();
		$response = $this->getResponse();
		
		// Accept only post request
		if(!$request->isPost()) {
		    $response->setStatusCode(Response::STATUS_CODE_500);
		    return new JsonModel(array(
				'status' => 'danger',
				'message' => 'Invalid method call'
			));
		}
		
		$userService = $this->getServiceLocator()->get('user.service.user');
		$data = array_merge_recursive(
			$this->params()->fromPost(),
			Json::decode($request->getContent(), Json::TYPE_ARRAY)
		);
		
		try {
		    $response->setStatusCode(Response::STATUS_CODE_200);
		    $userService->classifiedAnswer($data);
		    $returnData = array(
		        'status' => 'success',
		        'message' => 'La tua risposta è stata inviata!'
		    );
		} catch(\Exception $e) {
		    $response->setStatusCode(Response::STATUS_CODE_500);
			$returnData = @unserialize($e->getMessage());
			
			if(!is_array($returnData)) {
				$returnData = array(
					'status' => 'danger',
					'message' => $e->getMessage()
				);
			}
		}
		
		return new JsonModel($returnData);
	}
When user answer to a classified

@return \Zend\View\Model\JsonModel