UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CBPv8Xoj2RGMvcvD3DwoK+eP93jZ03wLtzjNsHfLjLU=' 
WHERE 
  key_id = 'b6d7b9082f4d9356c481e838f28e4d9c5b8ae04f37eca027665dd97500d1a079' 
  AND (
    token = 'CBPv8Xoj2RGMvcvD3DwoK+eP93jZ03wLtzjNsHfLjLU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )