Delete row 472018 from events

seq 472018
id evt_cfa448e0d81b
kind signal_ingest
ts 2026-04-21T16:48:44.773659+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-21T16:48:38.961 ...
source_ref crypto_mixed
confidence 1.0
dedupe_key discovery_crypto_extremes_snapshot:6dd491f6b81cdd8 ...
episode_id NULL
created_at 2026-04-21T16:48:44.773883+00:00
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