curl --request POST \
  --url https://api.traxes.io/connect/v1/entities/{entityId}/permissions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "permissionLevel": "Viewer",
  "principalId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
'

{
  "errors": [
    {
      "code": "<string>",
      "description": "<string>",
      "message": "<string>"
    }
  ]
}