Initiate payment order

{
  "id": "<string>",
  "amount": "<string>",
  "token": "<string>",
  "network": "base",
  "receiveAddress": "<string>",
  "validUntil": "2023-11-07T05:31:56Z",
  "senderFee": 123,
  "transactionFee": 123,
  "reference": "<string>"
}