Delete row sig_e392fae67d04 from signals

id sig_e392fae67d04
event_id evt_703c71c91087
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-12T01:22:52.103107+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:d9e19e392acbefde
throttle_s 0
created_at 2026-04-12T01:22:52.103107+00:00
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