validate_payable
[{"type":"address","value":"ak_PjM4zy6tzc3xQfSoK5ip2H8ndgSedhcTc5Dwpsb6g1A1bvT7G"},{"type":"contract","value":"ct_2BUHXzVNrELMiWKQ64saw1fvwir7wV5rnh5b28AK8Hf8Epr6qV"}]
{"type":"unit","value":""}