UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Z9lDoGXb5cymykcdtj+bnnrFxAvTiIILXzezJmXXlCI=' 
WHERE 
  key_id = '9755ea6097f4041a9c7664449b40a819990584a226876b441f66ffa03d1f00a6' 
  AND (
    token = 'Z9lDoGXb5cymykcdtj+bnnrFxAvTiIILXzezJmXXlCI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )