{
   "epochs": [ {
      "calculation_time": "13370529284399300",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13377613184850810",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "35EE1EFD759CC3D9546A200713D3B2068DCD995577EEFEA97B46EAE769B4CDA3",
   "next_scheduled_calculation_time": "13378217984850865"
}
