{
   "epochs": [ {
      "calculation_time": "13366443228024042",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367106946374499",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "8C2144332CAAC2E061F79FDA7EB4CDF68C50B30972365D82332E79A37FF63681",
   "next_scheduled_calculation_time": "13367711746374654"
}
