{
   "epochs": [ {
      "calculation_time": "13366300656342234",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366965239594293",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "5BE0B9DC27AF4A3449F60B5A7B79E84337B89CB56A84D7FAC44A60A175741589",
   "next_scheduled_calculation_time": "13367570039594775"
}
