Delete row sig_756776702c50 from signals

id sig_756776702c50
event_id evt_a5b4930b3fa8
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_85019222f ...
dedupe_key signal_enriched:news_delta:d280a0c6fc40e8b9
throttle_s 0
created_at 2026-04-10T08:19:32.356738+00:00
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