UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ud4/Lh9iavztcGy3ZMI6qmwwBGxZQfgmkBcPWg0XJz0=' 
WHERE 
  key_id = '8b2ef62122b20a9081eb00a5b36d765880aac48b499b641ce9e4346040bb4d7b' 
  AND (
    token = 'ud4/Lh9iavztcGy3ZMI6qmwwBGxZQfgmkBcPWg0XJz0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )