Rapyd API Request Signature not match

Hello everyone,
I am new to Rapyd and trying the first api call with postman but I got the Signature not match error message.

I am sure that there was no whitespace,trailing zeroes and decimal points. below is my example:

httpmethod: get
urlpath: /v1/payout_methods
salt: 0EBJDJkfj340k
timestamp: 1717943327
accesskey(fake):rak_B0EBJDJDK04KDk9660
secretkey(fake):rsk_e09ba219638dba73aeb0e73a36439fisjfdijf93946045f3e9b14b473fba8ca120mfkf040949c9edc29124a74ba

signature to encode: get/v1/payout_methods0EBJDJkfj340k1717943327rak_B0EBJDJDK04KDk9660rsk_e09ba219638dba73aeb0e73a36439fisjfdijf93946045f3e9b14b473fba8ca120mfkf040949c9edc29124a74ba

encoded signature: mTtrPduliIwrmmzxoB1j4daxLdwas0XJ0mEcqjFEiDc=

curl --location ‘https://sandboxapi.rapyd.net/v1/payout_methods?payout_currency=hkd&limit=2
–header ‘access_key: rak_B0EBJDJDK04KDk9660’
–header ‘Content-Type: application/json’
–header ‘salt: 0EBJDJkfj340k’
–header ‘signature: mTtrPduliIwrmmzxoB1j4daxLdwas0XJ0mEcqjFEiDc=’
–header ‘timestamp: 1717943327’