Adding a user Alias using the REST API

I’m trying to handle `TRANSFER` events from the webhooks.

Unfortunately, the `TRANSFER` events don’t copy any of the users previous attributes, including aliases (there should be an option to do this automatically IMO), so now we’re trying to keep our user app IDs in sync with our backend/database.

It seems that I cannot set aliases using the REST API though, only attributes. Is there a way for me to set aliases using the REST API?