Delete row sc_21e160e204ee3b61 from signal_candidates

id sc_21e160e204ee3b61
status done
signal_type discovery_unusual_volume_delta
source discovery_ingestor
url https://www.nasdaq.com/articles/greg-abel-has-60-b ...
headline Greg Abel Has 60% of Berkshire Hathaway's $320 ...
source_event_id evt_067ab7bd42b5
dedupe_key discovery_unusual_volume_delta:f048f5445257390d
claim_id NULL
claimed_by NULL
claimed_at NULL
lease_expires_at NULL
attempt_count 2
failed_at NULL
last_error extraction_failed: Unterminated string starting at ...
output_event_id evt_56b9d578c2fb
created_at 2026-04-12T06:42:42.365745+00:00
updated_at 2026-04-12T06:45:06.873266+00:00
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