Adds an event ticket model to the wallet server.
POST
https://${url}/hmspass/v1/eventticket/model
Note: The ${url} variable in the preceding request should be selected based on the region where the wallet server is located. For details, please refer to Wallet Server Address.
The request body contains an hwWalletObject, which is the event ticket model to be added.
If successful, this method returns a response containing the hwWalletObject that is added.