{
   "epochs": [ {
      "calculation_time": "13366804807953936",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367478958084459",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "F0C50ED225DAC741416F90272BF040E164C4BB5B981C68D41C9A6BF9E313743D",
   "next_scheduled_calculation_time": "13368083758084961"
}
