UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YUcm46nCmj3j5GTpKjy627kd4lusLL4EJIsAnT7thwU=' 
WHERE 
  key_id = '6f34387923e1cea04dedcf4e1e195eb20f6fc9e5fcdc52f54a55283ea358d15d' 
  AND (
    token = 'YUcm46nCmj3j5GTpKjy627kd4lusLL4EJIsAnT7thwU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )