curl --request GET \
  --url https://prod-contactswing-fastapi-962560522883.us-central1.run.app/v2/_customers \
  --header 'Authorization: <authorization>'

{
  "ctx_id": "<string>",
  "data": {
    "data": [
      {}
    ],
    "pagination": {
      "current_page": 123,
      "per_page": 123,
      "total_records": 123
    }
  },
  "message": "<string>"
}