We need to check the subscription status when importing profile updates, so we’re using the additional-fieldlprofile]=subscriptions parameter. This is returning the subscriptions object but the information is not accurate. On a profile that is subscribed to both email and sms, this is what is returned:

"subscriptions": {
    "email": {
        "marketing": {
            "can_receive_email_marketing": true,
            "consent": "NEVER_SUBSCRIBED",
            "consent_timestamp": null,
            "last_updated": null,
            "method": null,
            "method_detail": null,
            "custom_method_detail": null,
            "double_optin": null,
            "suppression": :],
            "list_suppressions": :]
        }
    },
    "sms": {
        "marketing": null
    },
    "mobile_push": {
        "marketing": null
    }
}

If I use the API to get the profile by the ID, the correct information is returned.