{
   "epochs": [ {
      "calculation_time": "13366809500062867",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367483734128755",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "9F60CE3B068C09FF57A134E4BAEE834777BEE62FD80DBBF918C4B9D2E780FC03",
   "next_scheduled_calculation_time": "13368088534128977"
}
