ErasureExecuteRequest

The execute door's request: the subject as the pseudonym UUID, plus the opaque request
reference (UUID — the RefRel::Request apparatus Beat 2 pinned). No name, no email, no case
description: the request-to-person mapping lives in the operator's DSAR records, outside the
ledger.

{
    "request_reference": "befa7ed4-201c-4983-ac08-b6179835da7c",
    "subject": "60edbbae-71be-4fbc-b2c1-f38d95f4b1b6"
}