public function deliveryAuthorized(AuthorizationGranted $event)
    {
        $deliveryExecution = $event->getDeliveryExecution();
        $data = $this->createMonitoringData($deliveryExecution);

        $data->update(DeliveryMonitoringService::AUTHORIZED_BY, $event->getAuthorizer()->getIdentifier());
        if (!$this->partialSave($data)) {
            \common_Logger::w('monitor cache for authorization could not be updated');
        }
    }