Delete row 470421 from events

seq 470421
id evt_8bb96cfa54bd
kind signal_ingest
ts 2026-04-21T10:14:27.945353+00:00
actor collector:opportunity_research
subject_entity_ids []
payload {"created_at":"2026-04-21T10:14:27.945 ...
source_ref targeted_research:case_06fa7992c645ac03
confidence 0.6
dedupe_key opportunity_research_snapshot:6ced831ce9e3c4c1
episode_id NULL
created_at 2026-04-21T10:14:29.178752+00:00
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