{
    "parent_data_set_tgm_default" : {
        "gm_clock_class" : 6,
        "gm_clock_accuracy" : "0x20",
        "gm_offset_scaled_log_variance" : "0x4e5d"
    },
    "time_properties_data_set_tgm_default": {
      "current_utc_offset": 37,
      "current_utc_offset_valid": 0,
      "time_traceable": 1,
      "frequency_traceable": 1
    },
    "grandmaster_settings": {
      "grandmaster_settings_tgm_default": {
        "clock_class": 6,
        "clock_accuracy": "0x20",
        "offset_scaled_log_variance": "0x4e5d",
        "time_traceable": 1,
        "frequency_traceable": 1,
        "time_source": "0x20",
        "current_utc_offset_valid": 0
      },
      "grandmaster_settings_tbc_default": {
        "clock_class": 248,
        "clock_accuracy": "0xfe",
        "offset_scaled_log_variance": "0xffff",
        "time_traceable": 0,
        "frequency_traceable": 0,
        "time_source": "0xa0",
        "current_utc_offset_valid": 0
      }
    }
  }