{'latitude': 41.884629, 'longitude': -87.648764, 'name': 'Bar Siena',
    'placeID': 'ChIJf3h_t9osDogReehZO7Hgk50', 'vibes': {
    'LGpswrvLgfYppcBG4bpmNzXQVoU2': {'rating': 1, 'timestamp': 
    1477961061.358844}, 'OSzA2KhTBWS3pxVnCZ6eScAuNDG3': {'rating': 5,
    'timestamp': 1477955566.836665}}}
How can I pull nested JSON values from python using dictionaries?