curl --request POST \
  --url https://api.cakto.com.br/public_api/subscriptions/{id}/change-payment-method/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "payment_method": "<string>"
}
'

{
  "id": "<string>",
  "amount": "<string>",
  "parent_order": {},
  "paymentMethod": {},
  "customer": {},
  "product": {},
  "offer": {},
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z",
  "current_period": 123,
  "recurrence_period": 123,
  "quantity_recurrences": 123,
  "trial_days": 123,
  "max_retries": 123,
  "retry_interval": 123,
  "paid_payments_quantity": 123,
  "retention": "<string>",
  "orders": [
    {}
  ],
  "next_payment_date": "2023-11-07T05:31:56Z",
  "canceledAt": "2023-11-07T05:31:56Z"
}