Delete row 470888 from events

seq 470888
id evt_b70b2ab1f0d0
kind signal_ingest
ts 2026-04-21T12:14:29.554757+00:00
actor collector:opportunity_research
subject_entity_ids []
payload {"created_at":"2026-04-21T12:14:29.554 ...
source_ref targeted_research:case_06fa7992c645ac03
confidence 0.6
dedupe_key opportunity_research_snapshot:c467963ab8edf608
episode_id NULL
created_at 2026-04-21T12:14:30.721870+00:00
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