curl --location --request POST 'https://staging-uno.topremit.com/pg/snap/v1/access-token/b2b' \
--header 'X-CLIENT-KEY;' \
--header 'X-SIGNATURE;' \
--header 'X-TIMESTAMP;'
{
"responseCode": "string",
"responseMessage": "string",
"accessToken": "string",
"tokenType": "string",
"expiresIn": "string",
"additionalInfo": {}
}