{
   "epochs": [ {
      "calculation_time": "13366448850189827",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367112711825706",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "9A628A9B3F37B2700015923CA588A4C42B27C77E3F77C4CBFCEAF543CC6E454A",
   "next_scheduled_calculation_time": "13367717511826530"
}
