Transaction

{
  "args": [
    {
      "string": "0x34b140c9eccf90214cbeac779170dd34876c8c28"
    },
    {
      "args": [
        {
          "string": "buy(uint256,uint64)"
        },
        {
          "args": [
            {
              "bytes": "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001"
            },
            {
              "prim": "None"
            }
          ],
          "prim": "Pair"
        }
      ],
      "prim": "Pair"
    }
  ],
  "prim": "Pair"
}