curl --request POST \
  --url https://app.chatobserver.com/api/v2/metrics/client/schedules/{scheduleId}/ownership \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --header 'x-metrics-client-audience: <x-metrics-client-audience>' \
  --header 'x-metrics-document-reference: <x-metrics-document-reference>' \
  --data '
{
  "targetOwnerActorId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "reason": "owner_requested_transfer"
}
'

const options = {
  method: 'POST',
  headers: {
    'x-metrics-client-audience': '<x-metrics-client-audience>',
    'x-metrics-document-reference': '<x-metrics-document-reference>',
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    targetOwnerActorId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    reason: 'owner_requested_transfer'
  })
};

fetch('https://app.chatobserver.com/api/v2/metrics/client/schedules/{scheduleId}/ownership', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://app.chatobserver.com/api/v2/metrics/client/schedules/{scheduleId}/ownership"

payload = {
    "targetOwnerActorId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "reason": "owner_requested_transfer"
}
headers = {
    "x-metrics-client-audience": "<x-metrics-client-audience>",
    "x-metrics-document-reference": "<x-metrics-document-reference>",
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "data": {
    "actorId": "<string>",
    "scheduleId": "<string>",
    "ownerActorId": "<string>",
    "changed": false
  },
  "replayed": false
}

{
  "error": {
    "code": "internal",
    "fieldPath": [
      "<string>"
    ],
    "parameters": {},
    "repairActions": [
      "<string>"
    ],
    "requestId": "<string>",
    "retryable": false,
    "retryAfterSeconds": 1
  }
}