json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "properties": {
          "getQuote": {
              "type": "object",
              "properties": {
                  "request": {
                      "type": "object",
                      "properties": {
                          "symbol": {
                              "type": "string"
                          }
                      },
                      "required": [
                          "symbol"
                      ]
                  }
              },
              "required": [
                  "request"
              ]
          }
      },
      "required": [
          "getQuote"
      ]
  }