Delete row sig_1e839f406bf6 from signals

id sig_1e839f406bf6
event_id evt_20edb46f7ed0
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_42d07a358 ...
dedupe_key signal_enriched:news_delta:b1cbd5edd6e5c7cb
throttle_s 0
created_at 2026-04-20T12:47:46.088302+00:00
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