Delete row sig_970bc539605b from signals

id sig_970bc539605b
event_id evt_fc181f7357b0
watcher_id NULL
signal_type opportunity_research_snapshot
value {"as_of":"2026-04-18T01:12:22.651684+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source opportunity_research_ingestor
reason_trace {}
dedupe_key opportunity_research_snapshot:b2aa9ee4d2ad54fc
throttle_s 0
created_at 2026-04-18T01:12:22.651684+00:00
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