mailjet-8.x-2.7/modules/mailjet_subscription/src/SubscriptionFormController.php

<?php

namespace Drupal\mailjet_subscription;

use Drupal\Core\Entity\EntityAccessControlHandler;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Session\AccountInterface;

/**
 * Defines an access controller for  Mailjet Subscription form entities.
 *
 *
 * @ingroup mailjet_subscription
 */
class SubscriptionFormController extends EntityAccessControlHandler
{

  /**
   * {@inheritdoc}
   */
    public function checkAccess(EntityInterface $entity, $operation, AccountInterface $account)
    {

        if ($operation == 'view') {
            return TRUE;
        }

        return parent::checkAccess($entity, $operation, $account);
    }

}