Delete row 222222 from events

seq 222222
id evt_453b8a424ab3
kind signal_candidate_ingest
ts 2026-04-18T18:48:29.555162+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-18T18:48:29.555 ...
source_ref rss
confidence 1.0
dedupe_key discovery_unusual_volume_delta:83f9c55ddd45f573
episode_id NULL
created_at 2026-04-18T18:48:32.246377+00:00
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