UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+2/yvLE/50JxuO4kLra/q9gq4E7yVqlZ3X9VTr6OPaY=' 
WHERE 
  key_id = '551ad43d56ed9fe9b0cf84606090811a7b470e6ab72a73f5bd4314451a27a09f' 
  AND (
    token = '+2/yvLE/50JxuO4kLra/q9gq4E7yVqlZ3X9VTr6OPaY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )