Delete row sig_438823255fbf from signals

id sig_438823255fbf
event_id evt_6576ffb882e2
watcher_id NULL
signal_type discovery_crypto_extremes_delta
value {"aggregator_url":"https://www.coingec ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_ingestor
reason_trace {"_evidence_event_ids":["evt_ef2bd3bbb ...
dedupe_key signal_enriched:discovery_crypto_extremes_delta:c8 ...
throttle_s 0
created_at 2026-04-08T22:43:46.053448+00:00
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