Delete row sig_84f13a1d898b from signals

id sig_84f13a1d898b
event_id evt_b631e687a466
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-17T19:24:24.988311+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:44991cef732ef3e5
throttle_s 0
created_at 2026-04-17T19:24:24.988311+00:00
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