curl --location 'https://api.techrar.com/order/v1/merchant/subscriptions/bulk-updates/' \
--header 'app-id: 4' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"subscription_ids": [102259],
"new_item_id": 196,
"change_mode": "at_next_renewal",
"reset_usage": false,
"notify_customer": false,
"notes": ""
}'{"success":[102259],"errors":[]}