notificationGrid Magento\AdminNotification\Model\ResourceModel\Grid\Collection DESC date_added 1 0 Severity severity Magento\AdminNotification\Block\Grid\Renderer\Severity Date Added date_added date_added datetime col-date col-date Message title Magento\AdminNotification\Block\Grid\Renderer\Notice Actions 0 Magento\AdminNotification\Block\Grid\Renderer\Actions notification_id notification 1 Mark as Read */*/massMarkAsRead Magento\AdminNotification\Block\Grid\MassAction\MarkAsReadVisibility Remove */*/massRemove Are you sure? Magento\AdminNotification\Block\Grid\MassAction\RemoveVisibility