UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xVn0L9UJyt5ILIKVJBYKH6H0XR//4wYR0Okv8MkoMlQ=' 
WHERE 
  key_id = '53a5c838d0097ca08aec5c3b081fa57c802867a08b4cd36e5abd604bd4180556' 
  AND (
    token = 'xVn0L9UJyt5ILIKVJBYKH6H0XR//4wYR0Okv8MkoMlQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )