curl --request POST \
  --url https://api.example.com/v1/notifications/access/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "accesses": [
    {
      "source": "web",
      "topic": "default",
      "enabled": true
    }
  ]
}
'

{
  "accesses": [
    {
      "source": "web",
      "topic": "default",
      "enabled": true
    }
  ]
}