{
   "epochs": [ {
      "calculation_time": "13366252639956276",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366917391802364",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "2C8C0930F8F36BD4F9DF23D1112FCD19187639E705703FC3A8AD4BE9994C2678",
   "next_scheduled_calculation_time": "13367522191802512"
}
