curl --request POST \
  --url https://api2.rhombussystems.com/api/org/updateFirmwareSettings \
  --header 'Content-Type: application/json' \
  --header 'x-auth-apikey: <api-key>' \
  --header 'x-auth-scheme: <x-auth-scheme>' \
  --data '
{
  "firmwareSettings": {
    "intervalsV2": [
      {
        "minuteOfWeekStart": 123,
        "minuteOfWeekStop": 123
      }
    ]
  },
  "firmwareUpdateSettings": {
    "intervalsV2": [
      {
        "minuteOfWeekStart": 123,
        "minuteOfWeekStop": 123
      }
    ]
  },
  "firmwareUpdateSettingsOverrides": [
    {
      "deviceTypes": [],
      "firmwareUpdateSettings": {
        "intervalsV2": [
          {
            "minuteOfWeekStart": 123,
            "minuteOfWeekStop": 123
          }
        ]
      }
    }
  ]
}
'

{
  "error": true,
  "errorMsg": "<string>",
  "warningMsg": "<string>"
}