curl --request PUT \
  --url https://open.beatpass.ca/api/v1/notifications/{user}/subscriptions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "selections": [
    {
      "notif_id": "new_message",
      "channels": {
        "email": true,
        "in_app": true,
        "mobile": false
      }
    }
  ]
}
'

{
  "status": "success"
}