UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6xbSTDr5vu1ZvIaQaB1qt5nd1oyoy50LRQcU3kXSWgo=' 
WHERE 
  key_id = 'a6181d9ba2c67c3e92822322081f45c683f23f3ae8d5dff50556874ecff9592f' 
  AND (
    token = '6xbSTDr5vu1ZvIaQaB1qt5nd1oyoy50LRQcU3kXSWgo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )