Webhook for when someone changes their segment preferences in preference center?

Hey. I’m trying to set up a webhook which will call a particular endpoint whenever someone updates their segment preferences using the Preference Center in Mautic. I will use it to keep my third-party CRM aware of who is part of which segments in Mautic.

But I cannot find any webhooks that seem to trigger when segment preferences are updated via preference center. Any idea where I might find that?