ErasureSurveyRequest

The survey door's request: the subject as the pseudonym UUID, and nothing else. No
request_reference — nothing is requested (ruled 2026-09-12: a survey attempt is not an
erasure request, so no reference is minted and no refusal would be recorded).

{
    "subject": "60edbbae-71be-4fbc-b2c1-f38d95f4b1b6"
}