Delete row sig_1b878ed2acfc from signals

id sig_1b878ed2acfc
event_id evt_e0fd5f3a5da0
watcher_id NULL
signal_type opportunity_research_snapshot
value {"as_of":"2026-04-07T08:01:19.856336+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source opportunity_research_ingestor
reason_trace {}
dedupe_key opportunity_research_snapshot:1687dc8e4827294c
throttle_s 0
created_at 2026-04-07T08:01:19.856336+00:00
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