{
   "epochs": [ {
      "calculation_time": "13366780579397911",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367453771828843",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "5A33964EC806FA8840748FC0831DE957128C5FBF2B51DFAF0581FC76B0417E07",
   "next_scheduled_calculation_time": "13368058571828962"
}
