curl --request GET \
  --url https://vault-api.stardust.gg/v1/profile/identifier \
  --header 'x-api-key: <api-key>'

{
  "results": [
    {
      "key": "<string>",
      "value": "<string>",
      "id": "<string>",
      "rootUserId": "<string>"
    }
  ],
  "total": 123,
  "start": 0,
  "limit": 100,
  "filter": {}
}