Delete row sig_1e01106c3b2b from signals

id sig_1e01106c3b2b
event_id evt_b866790f89ba
watcher_id NULL
signal_type opportunity_research_snapshot
value {"as_of":"2026-04-08T10:04:53.202694+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source opportunity_research_ingestor
reason_trace {}
dedupe_key opportunity_research_snapshot:a928520778abd48d
throttle_s 0
created_at 2026-04-08T10:04:53.202694+00:00
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