Delete row 222218 from events

seq 222218
id evt_122fa70a54ed
kind signal_ingest
ts 2026-04-18T18:48:31.425993+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-18T18:48:29.554 ...
source_ref rss
confidence 1.0
dedupe_key discovery_ipo_snapshot:ccc56300dd057d4f
episode_id NULL
created_at 2026-04-18T18:48:31.428050+00:00
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