{
   "epochs": [ {
      "calculation_time": "13366663970704880",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367326887141431",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "DDC75BAF7C8FD9E4A519B4F8A2034BE9077738342B09A59A51D93990BF5B8CE7",
   "next_scheduled_calculation_time": "13367931687142005"
}
