{
   "epochs": [ {
      "calculation_time": "13371069337283750",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13379354569961069",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "ABAEFF160908F889554D0B6D467733D24B0B459DFA5738927D11B5CDC05723E0",
   "next_scheduled_calculation_time": "13379959369961195"
}
