curl --request GET \
  --url https://api.hubapi.com/communication-preferences/v3/status/email/{emailAddress} \
  --header 'Authorization: Bearer <token>'

{
  "recipient": "<string>",
  "subscriptionStatuses": [
    {
      "description": "<string>",
      "id": "<string>",
      "name": "<string>",
      "brandId": 123,
      "legalBasisExplanation": "<string>",
      "preferenceGroupName": "<string>"
    }
  ]
}