Delete row sig_4173deb337df from signals

id sig_4173deb337df
event_id evt_a1d02d60174c
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_ed2346130 ...
dedupe_key signal_enriched:news_delta:467904cad7a52ecd
throttle_s 0
created_at 2026-04-11T12:53:27.218484+00:00
Cancel