Delete row 213890 from events

seq 213890
id evt_3475c8087fc1
kind signal_candidate_ingest
ts 2026-04-18T17:18:47.705432+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-18T17:18:47.705 ...
source_ref rss
confidence 1.0
dedupe_key discovery_unusual_volume_delta:0ec0470b7513f21b
episode_id NULL
created_at 2026-04-18T17:18:51.276802+00:00
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