[{"constant":false,"inputs":[{"name":"owner","type":"address"},{"name":"broker","type":"address"},{"name":"token","type":"address"},{"name":"amount","type":"uint256"}],"name":"onTokenSpent","outputs":[{"name":"ok","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"},{"name":"broker","type":"address"},{"name":"token","type":"address"}],"name":"getAllowance","outputs":[{"name":"allowance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}]