Delete row 140953 from events

seq 140953
id evt_d4e1bf2e5f58
kind signal_ingest
ts 2026-04-18T05:19:05.198913+00:00
actor collector:opportunity_research
subject_entity_ids []
payload {"created_at":"2026-04-18T05:19:05.198 ...
source_ref web_search:serper
confidence 0.6
dedupe_key opportunity_research_snapshot:06054df1bfa152c8
episode_id NULL
created_at 2026-04-18T05:19:06.570620+00:00
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