json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "additionalProperties": false,
      "definitions": {
          "IDType": {
              "pattern": "^\\d{10}$",
              "type": "string"
          },
          "ISO8601-Date": {
              "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
              "type": "string"
          },
          "ISO8601-Timestamp": {
              "pattern": "\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}(:\\d{2})?(([+-]\\d{2}(:\\d{2})?)|Z)",
              "type": "string"
          },
          "NINOType": {
              "pattern": "^[A-Z]{2}\\d{6}[A-D]$",
              "type": "string"
          }
      },
      "properties": {
          "DoB": {
              "$ref": "#/definitions/ISO8601-Date"
          },
          "_links": {
              "type": "object"
          },
          "firstname": {
              "type": "string"
          },
          "investorID": {
              "$ref": "#/definitions/IDType"
          },
          "investorNINO": {
              "$ref": "#/definitions/NINOType"
          },
          "lastname": {
              "type": "string"
          },
          "title": {
              "type": "string"
          }
      },
      "required": [
          "investorNINO",
          "title",
          "firstname",
          "lastname",
          "DoB"
      ],
      "type": "object"
  }