pick2lottery

{
  "name": "wininfo",
  "base": "",
  "fields": [
    {
      "name": "id",
      "type": "uint64"
    },
    {
      "name": "winning_number",
      "type": "string"
    },
    {
      "name": "epoch",
      "type": "uint32"
    },
    {
      "name": "oracle_source",
      "type": "string"
    },
    {
      "name": "drawing_times",
      "type": "string"
    },
    {
      "name": "liability_limit",
      "type": "uint32"
    },
    {
      "name": "open",
      "type": "bool"
    }
  ]
}