curl --request GET \
  --url https://api.fanvue.com/tracking-links/{uuid}/users/{userUuid}/metadata \
  --header 'Authorization: Bearer <token>' \
  --header 'X-Fanvue-API-Version: <x-fanvue-api-version>'

{
  "metadata": {
    "lead_id": "xyz123",
    "source": "snapchat",
    "conversation_id": "abc456"
  }
}