List supported chains

{
  "success": true,
  "data": [
    {
      "id": 0,
      "name": "string",
      "iconUrl": "string",
      "isTestnet": true,
      "nativeCurrency": {
        "name": "string",
        "symbol": "string",
        "decimals": 0
      },
      "blockExplorers": {
        "property1": {
          "name": "string",
          "url": "string",
          "apiUrl": "string"
        },
        "property2": {
          "name": "string",
          "url": "string",
          "apiUrl": "string"
        }
      }
    }
  ],
  "timestamp": "2019-08-24T14:15:22Z"
}

{
  "success": false,
  "error": {
    "code": "string",
    "message": "string",
    "category": "string",
    "details": null,
    "traceId": "string"
  },
  "timestamp": "2019-08-24T14:15:22Z"
}