{
   "epochs": [ {
      "calculation_time": "13366483863550883",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367146612949600",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "5727BDCA4BBFBE4134F5AE266FEFC790E5D2B2F88D04F493EEF2DE5C30038AC4",
   "next_scheduled_calculation_time": "13367751412949858"
}
