UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wjcU9Syru8R143Wg+l1p0h7ZLzvsoaOPE0TxZcWG910=' 
WHERE 
  key_id = '551d78c647978afdccfa5d4e99544b6d015d24d7693af144dc1b14551463765b' 
  AND (
    token = 'wjcU9Syru8R143Wg+l1p0h7ZLzvsoaOPE0TxZcWG910=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )