Delete row sig_b2201f4836f9 from signals

id sig_b2201f4836f9
event_id evt_8809101349cd
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-12T17:26:06.434352+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:e63c5256ecca238e
throttle_s 0
created_at 2026-04-12T17:26:06.434352+00:00
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