UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'QyrMyo55Rb2sJhb92LW29YVhNmSXf3Eyvxq7Ui6RyPk=' 
WHERE 
  key_id = '6cd816ff925b69e391943497e4da80aadd2f34416851f43ed7991e49ddee62e0' 
  AND (
    token = 'QyrMyo55Rb2sJhb92LW29YVhNmSXf3Eyvxq7Ui6RyPk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )