{
   "epochs": [ {
      "calculation_time": "13366374898473836",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367039955596910",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "F7243C850F6B32741485BE946DC35422573308FFB8B795FF12C461A142C01B33",
   "next_scheduled_calculation_time": "13367644755598060"
}
