curl --location --request POST 'https://partner-api-stage.p100.io/v1/payment-link' \
--header 'x-api-key: <api-key>' \
--header 'Content-Type: application/json' \
--data-raw '{
"amount": "123.45",
"expiresAt": "2025-08-31T21:21:35.840Z"
}'
{
"paymentLinkId": "663318af-7ea1-4c5a-8545-e433a2d43d5c",
"url": "https://p100-payment-link.io/123456789",
"amount": "123.45",
"expiresAt": "2025-08-31T21:21:35.840Z"
}