{
   "epochs": [ {
      "calculation_time": "13370772152495640",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13378005983365886",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "B3798FBB3A32DB75151B3E82ED15BA15F63F6D0B34E58CA4A54C0AE49650CA00",
   "next_scheduled_calculation_time": "13378610783365999"
}
