{
  "amount": "<String of size at most 74 containing an unsigned integer.>",
  "data": "<String with lowercase hex>",
  "from": {
    "Enum": [
      {
        "Account": [
          "<AccountAddress>"
        ]
      },
      {
        "Contract": [
          {
            "index": "<UInt64>",
            "subindex": "<UInt64>"
          }
        ]
      }
    ]
  },
  "token_id": "<String with lowercase hex>"
}

{
  "Enum": [
    {
      "ParseParams": []
    },
    {
      "YourError": []
    }
  ]
}

None