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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '82b718afbc502cdcaf82bb93053c77bf94b27b4f738288dcaee4602beda37456' 
  AND token = 'olR8B5UbrzISfJFsdIt1co7uKgbM6vSENx/EYlo7HUo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00009

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}