Delete row sig_5a5521ed2cd8 from signals

id sig_5a5521ed2cd8
event_id evt_2a86c9bb2420
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_e6e50b2a7 ...
dedupe_key signal_enriched:news_delta:d7c60bf3a8f9e0da
throttle_s 0
created_at 2026-04-15T05:12:44.562429+00:00
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