Zoho Subscription: You are not authorized to perform this operation

Zoho Subscription: You are not authorized to perform this operation

I am new to zoho integration and trying to integrate with subscriptions (https://www.zoho.com/subscriptions/api/v1/#introduction)

I created apiauthtoken using https://accounts.zoho.com/apiauthtoken/create?SCOPE=ZohoSubscriptions/subscriptionsapi
Now I am using that token to see all my orgnization using GET request to below url:
https://subscriptions.zoho.com/api/v1/organizations
Headers:
Authorization Zoho-oauthtoken [apiauthtoken GENERATED_FROM_ABOVE_URL]
oauthscope: ZohoSubscriptions.settings.READ

It gives me below response:
{
"code": 57,
"message": "You are not authorized to perform this operation"
}

Can you help me with this?