How to find the Lightroom cloud identifier of an image in Lightroom Classic

I am trying to sync keywords between Lightroom Cloudy and a synced Lightroom Classic catalog via the Lightroom cloud api. To access an image asset in the api, I need to know the identifier the identifier used for that image in the cloud. 

An example url to the api looks like this:

https://lr.adobe.io/v2/catalogs/a2d37f69b0214877b7e136533201642e/assets/008b71c6f5bd43769e1f9a615bff1681

Where the last section is the id (UUID with separators removed) of the image.

When opening the same image in a synced LrC catalog via the sdk, I get access to all the "traditional" metadata, but this reference id is nowhere to be found. So, is there a way to find the Cloudy id of an image from a synced Classic catalog? I assume that id is needed internally for syncing purposes.