UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pxd+CbZn08Kwtmpbfvd7HcU95bpTHj4LXUF3qNQTTSI=' 
WHERE 
  key_id = '6e8b99f15ca8b4d8553945e1324a21c2d7983d09c0daaaf1e35a06fce80be172' 
  AND (
    token = 'pxd+CbZn08Kwtmpbfvd7HcU95bpTHj4LXUF3qNQTTSI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )