Delete row sig_bd92705536bf from signals

id sig_bd92705536bf
event_id evt_8f30160fc9bb
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-13T09:25:51.559670+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:f3b707a0c48c8576
throttle_s 0
created_at 2026-04-13T09:25:51.559670+00:00
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