const response = await fetch(
  'https://service.pcibooking.net/api/payments/paycard/2821a46d80e14d1b96a7f18f1b81926d/externalUser/recipient-user-456',
  {
    method: 'PUT',
    headers: {
      'Authorization': 'APIKEY your-api-key'
    }
  }
);

console.log(response.status);

import requests

response = requests.put(
    'https://service.pcibooking.net/api/payments/paycard/2821a46d80e14d1b96a7f18f1b81926d/externalUser/recipient-user-456',
    headers={'Authorization': 'APIKEY your-api-key'}
)

print(response.status_code)

Ownership transferred successfully. No content returned.

{
    "code": -125,
    "message": "Bad input data",
    "moreInfo": "Could not find a valid user",
    "errorList": null
}

{
    "code": -1003,
    "message": "Not authorized to access this resource",
    "moreInfo": "User is not the owner of this bank card",
    "errorList": null
}