How to Initiate manual Pending worker convert process on new Redwood PWK page using Rest API calls

We would like to understand if anyone is aware of the process by which we can initiate the manual pending worker convert process that is on the new Redwood Pending worker page through Rest API calls.

If you know, the specific Post and Patch examples would be helpful.

I would like to mention we are not asking about the Convert Pending Worker schedule process. We need to replicate triggering the manual process from the UI page.