curl --location -g --request POST 'http://ssm.{region}.amazonaws.com/' \
--header 'X-Amz-Target;' \
--header 'Content-Type: application/json' \
--data-raw '{
"Description": "string",
"DefaultInstanceName": "string",
"IamRole": "string",
"RegistrationLimit": 0,
"ExpirationDate": "string",
"Tags": [],
"RegistrationMetadata": []
}'
{
"ActivationId": "string",
"ActivationCode": "string"
}