UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ar9XmPe2+mpC8RGm0QPbVHOAOEftimRzWSgZ4JvPe74=' 
WHERE 
  key_id = '28ad98b98b559e8594e6c8e14a5a53addca641acc32813121113d251f2750a73' 
  AND (
    token = 'Ar9XmPe2+mpC8RGm0QPbVHOAOEftimRzWSgZ4JvPe74=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )