Update a record in mongodb Laravel Jenssegers?

Hi, thanks for helping me.

I have the following problem. I need to update a json that has the following structure.

"Configuracion": {
  "Estados": {
    "Idioma": "es",
    "ComponenteActual": "datos-personales_2",
    "ProgresoDeBarra": {
      "Avance": 0,
      "Puntos": {
        "P_1": {
          "NumeroDePerguntas": 5,
          "NombreDeSeccion": "Tu perfil",
          "NombreDeComponente": "datos-personales_1"
        },
      }
    }
  },
  "Formulario": {
    "NombreDelComponenteAnterior": null,
    "NombreDelComponentePosterior": "datos-personales_2",
    "Preguntas": {
      "p_1": {
        "Correo_profesional": "",
        "Nombre": "",
        "Apellidos": "",
        "Edad": "",
        "Genero": ""
      }
    }
  }
}

I am using eloquent to consume my mongo database and I do it in the following way.

$modelo = Mymodelo::where('_id','=',$registro)->first();

Obviously this retrieves the first json, then to modify it I do the following.

$modelo->Configuracion->Estados->Estados = 'en';
$modelo->save();

If I do this, it returns this error.

Indirect modification of overloaded property Mymodelo::$Configuracion has no effect

and if I do this

$modelo = json_decode(Mymodelo::where('_id,'=',$registro)->first());
$modelo->Configuracion->Estados->Idioma= 'en';
$modelo->save();

Doing this does not update anything in the registry, and ends up throwing me an error that says that the method stdclass :: save (); it is undefined.

The only way I have managed to update a record is by doing it indirectly, but I would like it to be direct.

$modelo = Mymodelo::where('_id,'=',$registro)->first();
$mod = json_decode($modelo->Configuracion->Estados);
$mod->Idioma = "en";
$modelo->Configuracion = $mod;
$modelo->save();

I have not used the methods provided by the Jenssegers library because it does not end up matching the data structure I'm handling.

Really, thank you very much.