Delete row sig_dde928680363 from signals

id sig_dde928680363
event_id evt_e149cb82748f
watcher_id NULL
signal_type opportunity_research_snapshot
value {"as_of":"2026-04-19T17:13:03.286983+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source opportunity_research_ingestor
reason_trace {}
dedupe_key opportunity_research_snapshot:af84fb1eb604c46d
throttle_s 0
created_at 2026-04-19T17:13:03.286983+00:00
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