curl --request GET \
  --url https://api.embedreach.com/api/subscriptions

{
  "success": true,
  "message": "<string>",
  "data": {
    "results": [
      {
        "externalId": "<string>",
        "emailOptOut": true,
        "phoneOptOut": true,
        "emailSubscriptionChangeSource": "<string>",
        "smsSubscriptionChangeSource": "<string>",
        "emailSubscriptionChangeAt": "<string>",
        "smsSubscriptionChangeAt": "<string>",
        "lastSubscriptionChangeAt": "<string>"
      }
    ],
    "pagination": {
      "hasNextPage": true,
      "cursor": "<string>",
      "total": 123
    }
  }
}