{
   "epochs": [ {
      "calculation_time": "13366655982402715",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367318917707484",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "065E49D9BE20AE6FFBF1A598F7C5F5FFEF9B8DD42E856F4C201611871FDA48F0",
   "next_scheduled_calculation_time": "13367923717711668"
}
