UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5tuWnpK0rDTnj9VJiy270mgc3W0Drx1ZJVW0bBT7+jc=' 
WHERE 
  key_id = '4dd61d0e997e06076f4a7cb0957e02aa5e6aaffabc23ad780458d04e63a8f065' 
  AND (
    token = '5tuWnpK0rDTnj9VJiy270mgc3W0Drx1ZJVW0bBT7+jc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )