validate_payable
[{"type":"address","value":"ak_28mBfgKJ8i1d5bH5rLeq3Ryjy1iK4uVFGBh9qvxsY4tuNKTA5F"},{"type":"contract","value":"ct_2BUHXzVNrELMiWKQ64saw1fvwir7wV5rnh5b28AK8Hf8Epr6qV"}]
{"type":"unit","value":""}