{
  "properties": {
    "first": {
      "properties": {
        "data": {
          "type": "string"
        },
        "extraParams": {
          "properties": {
            "alpha": {
              "type": "number"
            }
          },
          "required": [
            "alpha"
          ],
          "type": "object"
        }
      },
      "required": [
        "data",
        "extraParams"
      ],
      "type": "object"
    },
    "second": {
      "properties": {
        "data": {
          "type": "string"
        },
        "extraParams": {
          "properties": {
            "beta": {
              "type": "string"
            }
          },
          "required": [
            "beta"
          ],
          "type": "object"
        }
      },
      "required": [
        "data",
        "extraParams"
      ],
      "type": "object"
    }
  },
  "required": [
    "first",
    "second"
  ],
  "type": "object"
}