Delete row sig_51abdb9d540b from signals

id sig_51abdb9d540b
event_id evt_a947363ef54f
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-20T13:43:12.771697+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:8651b2ce8a30a348
throttle_s 0
created_at 2026-04-20T13:43:12.771697+00:00
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