Delete row sig_dfb55564770d from signals

id sig_dfb55564770d
event_id evt_7b30951e977b
watcher_id NULL
signal_type market_headline_delta
value {"aggregator_url":"https://news.google ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {"_evidence_event_ids":["evt_c8528d18f ...
dedupe_key signal_enriched:market_headline_delta:32f5a21430aa ...
throttle_s 0
created_at 2026-04-19T11:09:37.011440+00:00
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