UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1rSUfyP8XCfjQACpb4UIGcHPV9IsLS9uf36FV+lRk40=' 
WHERE 
  key_id = '1c21f98ce5b0643642cded13f9048efe8599f762d7c913c0e37ae8ff41915d71' 
  AND (
    token = '1rSUfyP8XCfjQACpb4UIGcHPV9IsLS9uf36FV+lRk40=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )