Delete row sig_0075519a1cfc from signals

id sig_0075519a1cfc
event_id evt_40a5398366d6
watcher_id NULL
signal_type discovery_earnings_calendar_delta
value {"as_of":"2026-04-12T00:38:28.481951+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_earnings_calendar
reason_trace {"_evidence_event_ids":["evt_4f7542ee2 ...
dedupe_key signal_enriched:discovery_earnings_calendar_delta: ...
throttle_s 0
created_at 2026-04-12T00:38:28.481951+00:00
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