Request Access Token

curl --request POST \
     --url https://dev.nicepay.co.id/nicepay/v1.0/access-token/b2b \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --header 'x-signature: icZEJ7mPLLNNs+DdQo94BnOl9ywU3LY1iU/OxMlB+sIwJr1OVGBWhhc1H8r033l3DZPuyWmhsm8TL4GbBlXsIAj92NYiNlG6mktfoDpYrdqzXgDMYLWKtrYiaai2wpelY+8KLP86iA6+LIE5gEpwSm7j8iFK6RTJKV12VEMszds=' \
     --header 'x-client-key: IONPAYTEST' \
     --header 'x-timestamp: 2022-08-04T23:59:59+07:00' \
     --data '{
     "grantType": "client_credentials"
     }'