Delete row 9866 from events

seq 9866
id evt_090f1ab434ff
kind signal_ingest
ts 2026-04-09T23:18:51.623710+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-09T12:01:21.271 ...
source_ref candidate:sc_5a478f68f49dbfdb
confidence 0.78
dedupe_key signal_enriched:news_delta:37abff5ce6cfdd37
episode_id NULL
created_at 2026-04-09T23:18:51.623764+00:00
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