json_schema: {
      "id": "http://schemas.gdbots.io/json-schema/gdbots/enrichments/mixin/utm/1-0-0.json#",
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "properties": {
          "utm_source": {
              "type": "string",
              "pattern": "^[\\w\\/\\.:-]+$"
          },
          "utm_medium": {
              "type": "string",
              "pattern": "^[\\w\\/\\.:-]+$"
          },
          "utm_term": {
              "type": "string",
              "pattern": "^[\\w\\s\\/\\.,:-]+$"
          },
          "utm_content": {
              "type": "string",
              "pattern": "^[\\w\\/\\.:-]+$"
          },
          "utm_campaign": {
              "type": "string",
              "pattern": "^[\\w\\/\\.:-]+$"
          }
      },
      "additionalProperties": true
  }