[
  {
    "constant": false,
    "inputs": [
      { "name": "", "type": "uint256" },
      {
        "type": "tuple",
        "components": [
          { "type": "bytes32" },
          { "type": "bytes32" },
          { "type": "uint256" }
        ]
      },
      {
        "type": "bool"
      }
    ],
    "name": "doSomething",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
  }
]