UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8mQ+j7bui3me7olNXbp2wF4P7Er2IXfCwiB97/QGZy8=' 
WHERE 
  key_id = '4e9845e6676f39ea59ae50a5444933d0201b07172b54f7fdd352ffc9ba869074' 
  AND (
    token = '8mQ+j7bui3me7olNXbp2wF4P7Er2IXfCwiB97/QGZy8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )