curl --location --request POST 'notifyUrl' \
--header 'X-RESP-SIGNATURE: 3046022100ae8634a9db66c069030483012e7d0e38ebca6d924b82d8bb2e240764dafeb4f3022100ba3e3bd90346652e681b4b1b25e55d983002d84160fb9c696fb20ea3e4742e76' \
--header 'Content-Type: application/json' \
--data-raw '{
"bizType": 2,
"currency": "BDT",
"failReason": "payment failed",
"fee": "2",
"mchNo": "M1688443982",
"mchOrderNo": "YN7220230300929",
"orderAmount": "100",
"payAmount": "100",
"payOrderId": "P1681112064487976961",
"state": 3
}'