{
   "epochs": [ {
      "calculation_time": "13366810315254335",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367484618804997",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "CBB879441C48B107077E7F18FAC2B051ADDC125CF3F83BE5632245B9DEB5EFD0",
   "next_scheduled_calculation_time": "13368089418805504"
}
