How to upload and save a pickle file to a django rest framework?

As it says in the title, I am trying to upload a model.pkl and save it in an API made in django. I manage to save the model.pkl correctly in the API, however the file is uploaded in a corrupt way, because I cannot read the pickle file.

Im open to any solutions that can make the pickle file be uploaded, stored and readed in the API.

Class to upload the file and save it

class FileUploadView(APIView):
    parser_classes = (FileUploadParser,)

    def put(self, request):
        file = request.data.get('file', None)
        file_name = f'path/{file.name}'

        path = default_storage.save(name=file_name, content=ContentFile(file.read()))
        tmp_file = os.path.join(settings.MEDIA_ROOT, path)

        if file is not None:
            return Response(f'File: {file.name} successfully uploaded and saved!', status=HTTP_200_OK)
        else:
            return Response(f'File not found!', status=HTTP_400_BAD_REQUEST)

Error when reading the file

def read_PickleModel(path_to_PickleModel):
    with open(path_to_PickleModel, 'rb') as f:
        pickle_model = pickle.load(f)
    return pickle_model

read_PickleModel(path_to_PickleModel)

Traceback:
DEBUG: An exception has ocurred: invalid load key, '-'.

Postman