Delete row sig_50e95016821e from signals

id sig_50e95016821e
event_id evt_69ef8661208a
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-20T01:22:57.706667+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:59c6c85a925d12d6
throttle_s 0
created_at 2026-04-20T01:22:57.706667+00:00
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