mutation CreateEmailPreviewUrl($input: CreateEmailPreviewUrlInput!) {
  createEmailPreviewUrl(input: $input) {
    emailPreviewUrl {
      previewUrl
      expiresAt {
        unixTimestamp
        iso8601
      }
    }
    error {
      message
      type
      code
      fields {
        field
        message
        type
      }
    }
  }
}

{
  "input": {
    "emailId": "id",
    "customerId": "id"
  }
}

{
  "data": {
    "createEmailPreviewUrl": {
      "emailPreviewUrl": {
        "previewUrl": "string",
        "expiresAt": {
          "unixTimestamp": "string",
          "iso8601": "string"
        }
      },
      "error": {
        "message": "string",
        "type": "VALIDATION",
        "code": "string",
        "fields": [
          {
            "field": "string",
            "message": "string",
            "type": "VALIDATION"
          }
        ]
      }
    }
  }
}