curl --location -g --request GET 'https://www.amazon.com/ap/oa/amc/instances/{{instanceId}}/advertisers' \
--header 'Amazon-Advertising-API-ClientId: {{client_id}}' \
--header 'Amazon-Advertising-API-AdvertiserId: {{advertiser_id}}' \
--header 'Amazon-Advertising-API-MarketplaceId: {{marketplace_id}}' \
--header 'Authorization: Bearer {{access_token}}'
{
"advertisers": [],
"nextToken": null,
"totalCount": 0
}