UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n6mLMlLGKllqzMxJDfFlXXqFudhKkDBdd3nLv3zxEf0=' 
WHERE 
  key_id = '8d5bb688074faca36d66cb036081d7fd408641e15a29b2a7a110b3cc22246378' 
  AND (
    token = 'n6mLMlLGKllqzMxJDfFlXXqFudhKkDBdd3nLv3zxEf0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )