const options = {
  method: 'PUT',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({note: '<string>'})
};

fetch('https://prod-payments-api.forebit.io/v1/businesses/{businessId}/payments/{paymentId}/note', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "message": "<string>",
  "errors": [
    "<string>"
  ]
}