Delete row sig_9857b7a81f98 from signals

id sig_9857b7a81f98
event_id evt_bfd60f2efe6b
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_9dc5b2332 ...
dedupe_key signal_enriched:news_delta:f6d096aaa74a5846
throttle_s 0
created_at 2026-04-19T06:39:15.409186+00:00
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