space.highport.manage.reserveDomain

Reserve a name directly under a delegation base for another identity. The name answers /.well-known/atproto-did with the subject right away, and the subject can then publish a site there. The caller must own the base. Any unproven claim on the name is replaced. Repeating the call for the same subject returns the existing reservation and does not count against maxNames. Reservations last as long as the base.