UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dmvm4yowM5hRaLOZUxNtOwmHhNzKFKjg7gegyQr6saE=' 
WHERE 
  key_id = '33fa81fc611264438150e596c91a46d60b219098fea0737c54d035100feb0fca' 
  AND (
    token = 'dmvm4yowM5hRaLOZUxNtOwmHhNzKFKjg7gegyQr6saE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )