curl --request POST \
  --url https://api2.rhombussystems.com/api/user/metadata/updateUserMetadataFieldTemplate \
  --header 'Content-Type: application/json' \
  --header 'x-auth-apikey: <api-key>' \
  --header 'x-auth-scheme: <x-auth-scheme>' \
  --data '
{
  "selectiveUpdate": {
    "createdAtMillis": 123,
    "fieldName": "<string>",
    "orgUuid": "AAAAAAAAAAAAAAAAAAAAAA",
    "scimFieldName": "<string>",
    "updatedAtMillis": 123,
    "updatedSetMethodMap": {},
    "uuid": "AAAAAAAAAAAAAAAAAAAAAA"
  }
}
'

import requests

url = "https://api2.rhombussystems.com/api/user/metadata/updateUserMetadataFieldTemplate"

payload = { "selectiveUpdate": {
        "createdAtMillis": 123,
        "fieldName": "<string>",
        "orgUuid": "AAAAAAAAAAAAAAAAAAAAAA",
        "scimFieldName": "<string>",
        "updatedAtMillis": 123,
        "updatedSetMethodMap": {},
        "uuid": "AAAAAAAAAAAAAAAAAAAAAA"
    } }
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({
    selectiveUpdate: {
      createdAtMillis: 123,
      fieldName: '<string>',
      orgUuid: 'AAAAAAAAAAAAAAAAAAAAAA',
      scimFieldName: '<string>',
      updatedAtMillis: 123,
      updatedSetMethodMap: {},
      uuid: 'AAAAAAAAAAAAAAAAAAAAAA'
    }
  })
};

fetch('https://api2.rhombussystems.com/api/user/metadata/updateUserMetadataFieldTemplate', 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/user/metadata/updateUserMetadataFieldTemplate")
  .header("x-auth-scheme", "<x-auth-scheme>")
  .header("x-auth-apikey", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"selectiveUpdate\": {\n    \"createdAtMillis\": 123,\n    \"fieldName\": \"<string>\",\n    \"orgUuid\": \"AAAAAAAAAAAAAAAAAAAAAA\",\n    \"scimFieldName\": \"<string>\",\n    \"updatedAtMillis\": 123,\n    \"updatedSetMethodMap\": {},\n    \"uuid\": \"AAAAAAAAAAAAAAAAAAAAAA\"\n  }\n}")
  .asString();

{
  "template": {
    "createdAtMillis": 123,
    "fieldName": "<string>",
    "orgUuid": "AAAAAAAAAAAAAAAAAAAAAA",
    "scimFieldName": "<string>",
    "updatedAtMillis": 123,
    "uuid": "AAAAAAAAAAAAAAAAAAAAAA"
  }
}