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/user/business_contacts/sync_tokens
curl -L \ --request POST \ --url 'https://HOSTNAME:8887/api/user/business_contacts/sync_tokens' \ --header 'Authorization: Bearer YOUR_SECRET_TOKEN'
{ "token": "RQ2dX9ZC7VuWlVpXXvad2dL3lyhjnN-7eOw95wXymoo." }