Delete row 300286 from events

seq 300286
id evt_744662d3d355
kind signal_ingest
ts 2026-04-19T11:16:31.307118+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-19T11:16:24.658 ...
source_ref crypto_mixed
confidence 1.0
dedupe_key discovery_crypto_extremes_snapshot:e761c3a56dc60fd ...
episode_id NULL
created_at 2026-04-19T11:16:31.307361+00:00
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