How to find Config entry id to reload via service call

How do I find a config entry id and use that id to reload an integration via a service call? It seems simple enough to just use “Home Assistant Core Integration: Reload config entry” and add a config entry id but I’m not sure where to look for that. There was a post on here about using a rest API command to do it but Iost the thread and can’t find it again.

Did you find a solution?
In case you haven’t found it yet, /config/.storage/core.config_entries