magento-test/app/code/Magento/MediaGallerySynchronization/etc/queue_topology.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework-message-queue:etc/topology.xsd">
    <exchange name="magento">
        <binding id="MediaGallerySynchronization" topic="media.gallery.synchronization" destination="media.gallery.synchronization"/>
    </exchange>
</config>