A descriptive or arbitrary ID for the subscription. This value must be unique within the subscription definition version. Max length is 128 characters with pattern ''[a-zA-Z0-9:_-]+''.
The source of the subscription. Can be a thing ARN, a Lambda function ARN, a connector ARN, 'cloud' (which represents the AWS IoT cloud), or 'GGShadowService'.
Where the message is sent to. Can be a thing ARN, a Lambda function ARN, a connector ARN, 'cloud' (which represents the AWS IoT cloud), or 'GGShadowService'.