curl --request GET \
  --url https://api.permutive.app/audience-api/v1/imports/{importId}

{
  "id": "ef832310-b808-44f4-86bc-947be1cd37c7",
  "name": "Data Provider Name",
  "code": "data_provider_name",
  "relation": "3rd",
  "identifiers": [
    "appnexus"
  ],
  "inheritance": {
    "workspace_id": "5de2731c-8dcf-4e12-a815-e58b481bd8ac",
    "relation": "ancestor"
  },
  "source": {
    "id": "f93e5c65-7b2e-4c38-b721-3beb93e4f877",
    "state": {
      "type": "active"
    },
    "type": "live_ramp_3p"
  }
}