PAYU_ENV=production
BASE_URL=https://secure.payu.com
PAYU_POS_ID=4419440
PAYU_CLIENT_ID=4419440
PAYU_CLIENT_SECRET=len=32

HTTP=200
BODY:
{"access_token":"31d9e2b2-cdec-4236-992d-f98892012704","token_type":"bearer","expires_in":43199,"grant_type":"client_credentials"}