Delete row sig_064e42c8962c from signals

id sig_064e42c8962c
event_id evt_4d120e95b42c
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-20T12:06:21.677005+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:a3dcfc236e7418d8
throttle_s 0
created_at 2026-04-20T12:06:21.677005+00:00
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