Delete row 354256 from events

seq 354256
id evt_9c32ed6796c9
kind signal_ingest
ts 2026-04-20T00:17:45.550290+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-20T00:17:33.093 ...
source_ref candidate:sc_6b0ef9e4b2ef5bc7
confidence 0.42
dedupe_key signal_enriched:news_delta:b2cd09f83434b83c
episode_id NULL
created_at 2026-04-20T00:17:45.550397+00:00
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