how to use Price API

I have appId, Access Token,
and generated X-Seller-Authz-Token, and struggling how to use it.
Trying the link below asks for 4 input .

X-Auth-Token - ???

X-Seller-Authz-Token - generated token for test seller Ok

ClientId - Organization name Ok

supc - Taken from the here

curl -i -H "X-Auth-Token: 1e1f876d28284bae902d8dc0f1b47241" -H "X-Seller-AuthZ-Token: e9954813-c398-4619-bef4-2b81378a05ad" https://staging-apigateway.snapdeal.com/seller-api/products/price/bulksupcs = SDL001124991 ,SDL564609422