UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k29dX6zylwuAPyqRY1tVXuXi2G9yBHF15OUqHhMYfSM=' 
WHERE 
  key_id = '1b40bd26e5874f98e736f7f948a8a844965ae5b389e2bcc915e723ef40194f3d' 
  AND (
    token = 'k29dX6zylwuAPyqRY1tVXuXi2G9yBHF15OUqHhMYfSM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )