curl --request GET \
  --url https://api.xem.email/api/v1/api/v1/analytics/audience

{
  "behaviors": {},
  "demographics": {},
  "preferences": {},
  "segments": [
    {
      "clickRate": 123,
      "growth": 123,
      "name": "<string>",
      "openRate": 123,
      "size": 123
    }
  ]
}