<p>Called when the default data for the guest User entity object is being prepared.</p>

<p>Callback signature:</p>
<blockquote><code><em>array</em> &amp;$defaultData</code></blockquote>

<p>Arguments:</p>
<ol>
	<li><code><em>array</em> &amp;$defaultData</code> - the default data to be added to the guest User entity and its relations. Add new values to the User entity: <code>$defaultData['keyName'] = 'value';</code>. Add new values to the entity's relations: <code>$defaultData['_relations']['relationName']['keyName'] = 'value';</code></li>
</ol>

<p>
	<b>Note:</b> Any values added to the default data should be encoded as if they have been stored in the database. For example, if the column is JSON encoded, you should provide the JSON string rather than a PHP array.
</p>