{
   "epochs": [ {
      "calculation_time": "13366237939175690",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366902890520289",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "D36D28E90B9245FD0E09BF927F5B617D9E5FBC5F65FFB33EE23A3E120FCF8C4F",
   "next_scheduled_calculation_time": "13367507690520773"
}
