HTTP request to authorize claiming for an application

I’m looking for the HTTP request that can be used to authorize claiming for a given application. Would you know what I should pass in the body of the HTTP request?

In other words, I’m looking for the HTTP request equivalent to this CLI command:
ttn-lw-cli applications claim authorize <app-id>
indicated here.

When using the CLI, is there a way to see the HTTP requests that are done? (a bit like what we do with the inspector mode when using the Console).

Thank you
Regards