{
  "type": "object",
  "properties": {
    "refreshToken": {
      "type": "string",
      "errorMessage": {
        "type": "Refresh token must be a string"
      }
    }
  },
  "required": ["refreshToken"],
  "errorMessage": {
    "required": {
      "refreshToken": "Refresh token is required"
    }
  }
}