Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0589a9470e9834c6194fe5df5b2714d57d25c0fdb08eb498d79ebb2f14004814' 
  AND token = 'Lqlq0eAXfHBaPSAxYWsIkPO9aEPDUDkdRLAWFblHHh8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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