UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'U6jDgdqaZcll7APSo9/wDVrwBv37KrNoDj41pbGgGqk=' 
WHERE 
  key_id = '38e807c815fce7f175b9ddb156c81a9895781a3af012e6f805fcb2d61b487c17' 
  AND (
    token = 'U6jDgdqaZcll7APSo9/wDVrwBv37KrNoDj41pbGgGqk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )