{
"countryCode": "US",
"accountType": "AUTHOR"
}
curl --location --request POST 'https://www.amazon.com/ap/oa/testAccounts' \
--header 'Amazon-Advertising-API-ClientId: {{client_id}}' \
--header 'Authorization: Bearer {{access_token}}' \
--header 'cache-control: no-cache' \
--header 'Content-Type: application/json' \
--data-raw '{
"countryCode": "US",
"accountType": "AUTHOR"
}'
{}