{
   "epochs": [ {
      "calculation_time": "13366326265939255",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366991999226255",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "A55632E12119B7F011DB4F673EEA01A9A16624072813D91C2AD9A9069039604A",
   "next_scheduled_calculation_time": "13367596799226912"
}
