Delete row sig_4ef1f293a5db from signals

id sig_4ef1f293a5db
event_id evt_532da11fa078
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_ff5ffca94 ...
dedupe_key signal_enriched:news_delta:c55e49d65f1e9012
throttle_s 0
created_at 2026-04-20T13:02:54.549513+00:00
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