How to find Event ID in source code at ticketmaster.co.uk? (Discovery API)

Question

I'm trying to find an event id from the source code of an event page, say for example:

https://www.ticketmaster.co.uk/j-hus-champagne-experience-manchester-01-11-2023/event/1F005EE7BC123488

I know it's not the one in the URL (1F005EE7BC123488), so it has to be somewhere in the code.

Searching for discoveryId worked for U.S. events (.com), but it doesn't for U.K. Events.

It's insane how they don't even provide you with an ID, but have a whole API.