UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6nS9+pIy6JxhlIXs2qIvfcE0ewcdCxYLfLQbuzg54j0=' 
WHERE 
  key_id = '2fbba5ec81e80d6989418547f4e527244ee3198022d56422b7adc6063444000b' 
  AND (
    token = '6nS9+pIy6JxhlIXs2qIvfcE0ewcdCxYLfLQbuzg54j0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )