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
          }
        ]
      }
    }
  ]
}
'

import requests

url = "https://api2.rhombussystems.com/api/org/updateFirmwareSettings"

payload = {
    "firmwareSettings": { "intervalsV2": [
            {
                "minuteOfWeekStart": 123,
                "minuteOfWeekStop": 123
            }
        ] },
    "firmwareUpdateSettings": { "intervalsV2": [
            {
                "minuteOfWeekStart": 123,
                "minuteOfWeekStop": 123
            }
        ] },
    "firmwareUpdateSettingsOverrides": [
        {
            "deviceTypes": [],
            "firmwareUpdateSettings": { "intervalsV2": [
                    {
                        "minuteOfWeekStart": 123,
                        "minuteOfWeekStop": 123
                    }
                ] }
        }
    ]
}
headers = {
    "x-auth-scheme": "<x-auth-scheme>",
    "x-auth-apikey": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-auth-scheme': '<x-auth-scheme>',
    'x-auth-apikey': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    firmwareSettings: {intervalsV2: [{minuteOfWeekStart: 123, minuteOfWeekStop: 123}]},
    firmwareUpdateSettings: {intervalsV2: [{minuteOfWeekStart: 123, minuteOfWeekStop: 123}]},
    firmwareUpdateSettingsOverrides: [
      {
        deviceTypes: [],
        firmwareUpdateSettings: {intervalsV2: [{minuteOfWeekStart: 123, minuteOfWeekStop: 123}]}
      }
    ]
  })
};

fetch('https://api2.rhombussystems.com/api/org/updateFirmwareSettings', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

HttpResponse<String> response = Unirest.post("https://api2.rhombussystems.com/api/org/updateFirmwareSettings")
  .header("x-auth-scheme", "<x-auth-scheme>")
  .header("x-auth-apikey", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"firmwareSettings\": {\n    \"intervalsV2\": [\n      {\n        \"minuteOfWeekStart\": 123,\n        \"minuteOfWeekStop\": 123\n      }\n    ]\n  },\n  \"firmwareUpdateSettings\": {\n    \"intervalsV2\": [\n      {\n        \"minuteOfWeekStart\": 123,\n        \"minuteOfWeekStop\": 123\n      }\n    ]\n  },\n  \"firmwareUpdateSettingsOverrides\": [\n    {\n      \"deviceTypes\": [],\n      \"firmwareUpdateSettings\": {\n        \"intervalsV2\": [\n          {\n            \"minuteOfWeekStart\": 123,\n            \"minuteOfWeekStop\": 123\n          }\n        ]\n      }\n    }\n  ]\n}")
  .asString();

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