Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'da7fe87b6e79e8552c8973e5861d04ebf7b4729de811c15ab62e06215a89f8de' 
  AND token = 'H60qBc3PO0WH3tcVxkWRRHJOWNtlp7yAz8PE463IImU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}