{
  "first": {"event_id": "evt_fixture_001", "status": "processed"},
  "repeat": {"event_id": "evt_fixture_001", "status": "duplicate"},
  "total_cents": 1250,
  "failures": {"bad_signature": "invalid_signature", "stale": "stale_event", "changed_body": "event_conflict", "malformed": "invalid_event", "oversize": "event_too_large"}
}