Delete row sig_64621d60d33d from signals

id sig_64621d60d33d
event_id evt_674326e4bdbb
watcher_id NULL
signal_type news_headline_delta
value {"aggregator_url":"https://news.google ...
threshold NULL
direction NULL
severity NULL
window NULL
source news_rss
reason_trace {"_evidence_event_ids":["evt_ba9781a5c ...
dedupe_key signal_enriched:news_delta:31c07497775a1893
throttle_s 0
created_at 2026-04-10T18:45:21.228370+00:00
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