curl --location --request POST 'https://checkout-sandbox.payway.com.kh//api/payment-credential/v3/aof/link-account' \
--header 'Content-Type: application/json' \
--data-raw '{
"request_id": "string",
"request_time": "string",
"merchant_id": "string",
"ctid": "string",
"return_deeplink": "string",
"token_flag": "string",
"currency": "string",
"callback_url": "string",
"hash": "string"
}'