Can not send image with data to serializer

Question

I'm trying to send some data and an image and put them into their own models.

I can see the data that comes to the view if I print it:

<QueryDict: {
  'id': ['2f44ab21-4e05-4e0a-ade1-05cdbdbf1cab'], 
  'name': ['NewFooBar'], 
  'image': ["{
     'image': <tempfile._TemporaryFileWrapper object at 0x7f766a229ac0>, 
     'tool': '2f44ab21-4e05-4e0a-ade1-05cdbdbf1cab', 
     'id': 'ae5d04ed-1e03-4111-b584-9db947068d38'
     }"]
  }
>

I can also print out the serializer before checking if is_valid. And there I see the data:

NestedToolSerializer(data=<QueryDict: {
  'id': ['2f44ab21-4e05-4e0a-ade1-05cdbdbf1cab'], 
  'name': ['NewFooBar'], 
  'image': ["{
     'image': <tempfile._TemporaryFileWrapper object>, 
     'tool': '2f44ab21-4e05-4e0a-ade1-05cdbdbf1cab', 
     'id': 'ae5d04ed-1e03-4111-b584-9db947068d38'}"
     ]}>):
    id = UUIDField(read_only=True)
    image = ImageToolSerializer():
        id = UUIDField(read_only=True)
        tool = PrimaryKeyRelatedField(queryset=Tool.objects.all())
        image = ImageField(allow_null=True, max_length=100, required=False)
    name = CharField(max_length=70)
    description = CharField(allow_blank=True, required=False, style={'base_template': 'textarea.html'})
    keeper = PrimaryKeyRelatedField(allow_null=True, queryset=CustomUser.objects.all(), required=False)

I never get serializer.is_valid() but I get the serializer.errors and it says:

{'image': [ErrorDetail(string='This field is required.', code='required')]}

This is my unittest:

def test_upload_image_when_creating_tool(self):
        """ Creating a tool and upload image at the same time """
        uuidTool = '2f44ab21-4e05-4e0a-ade1-05cdbdbf1cab'
        uuidImage = 'ae5d04ed-1e03-4111-b584-9db947068d38'
        
        with tempfile.NamedTemporaryFile(suffix='.jpg') as ntf:
            img = Image.new('RGB', (10, 10))
            img.save(ntf, format='JPEG')
            ntf.seek(0)
            payload = {'id': uuidTool, 'name': 'NewFooBar',
                       'image': [{'image': ntf, 'tool': uuidTool,
                                  'id': uuidImage, }, ], }
            response = self.client.post(NESTED_URL,
                                        payload, format='multipart',)

        print('    UNITTEST     ')
        print(response.data)
        tool = Tool.objects.get(id=uuidTool)
        image = ImageTool.objects.get(id=uuidImage)
        print(response.data)

        self.assertEqual(response.status_code, status.HTTP_201_CREATED)
        self.assertTrue(tool)
        self.assertTrue(image)
        self.assertTrue(os.path.exists(image.image.path))
        image.image.delete()

This is my View:

class ToolPostUpload(views.APIView):
    authentication_classes = (TokenAuthentication,)
    permission_classes = (IsAuthenticated,)
    parser_classes = (MultiPartParser, FormParser, JSONParser)

    def post(self, request, format=None):
        print('    VIEW     ')
        print(request.data)
        serializer = NestedToolSerializer(data=request.data)
        print('     serializer.data     ')
        print(serializer)

        if serializer.is_valid():
            serializer.save()
            return Response(
                serializer.data,
                status=status.HTTP_200_OK,
            )

        return Response(
            serializer.errors,
            status=status.HTTP_400_BAD_REQUEST,
        )

And my serializer:

class ImageToolSerializer(serializers.ModelSerializer):
    """Serialize image for tool"""

    class Meta:
        model = ImageTool
        fields = ['id', 'tool', 'image']
        read_only_fields = ('id',)


class NestedToolSerializer(WritableNestedModelSerializer):
    """ Serilizer for tool nested serializers """

    # Reverse FK relation
    image = ImageToolSerializer()

    class Meta:
        model = Tool
        fields = ('id', 'image', 'name', 'description',
                  'keeper')
        extra_kwargs = {'image': {'required': False}}