Sending JSON using the django test client

@mrmagooey is right

def test_your_test(self):
    python_dict = {
        "1": {
            "guid": "8a40135230f21bdb0130f21c255c0007",
            "portalId": 999,
            "email": "fake@email"
        }
    }
    response = self.client.post('/pipeline-endpoint/',
                                json.dumps(python_dict),
                                content_type="application/json")

use json.dumps instead of json.loads