const response = await fetch('https://service.pcibooking.net/api/networkToken', {
  method: 'DELETE',
  headers: {
    'Authorization': 'APIKEY your-api-key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    Brand: 'Visa',
    TokenId: '4895370012003478',
    Source: 'CardHolder',
    Reason: 'Customer requested token removal'
  })
});

const data = await response.json();
console.log(data);

import requests

response = requests.delete(
    'https://service.pcibooking.net/api/networkToken',
    headers={
        'Authorization': 'APIKEY your-api-key',
        'Content-Type': 'application/json'
    },
    json={
        'Brand': 'Visa',
        'TokenId': '4895370012003478',
        'Source': 'CardHolder',
        'Reason': 'Customer requested token removal'
    }
)

print(response.json())

true

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

{
    "code": -125,
    "message": "Bad input data",
    "moreInfo": "...",
    "errorList": null
}