UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8rJzYUeU7JAQhil20cGInMfGxriNPkSkei5paqj64So=' 
WHERE 
  key_id = '5dfe0ab8a87b40612705de6c52c630fdb4204ea1302edd7904919a0be2f9518b' 
  AND (
    token = '8rJzYUeU7JAQhil20cGInMfGxriNPkSkei5paqj64So=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )