4.0.0 Unsubscribing from a Cartridge

Description	Used to unsubscribe from a cartridge
URL	`/cartridge/unsubscribe`
HTTP Method	`POST`
Request/Response Format	`application/JSON`

test_PHP

Use case: Unsubscribe from a Cartridge. The example request is as follows:

curl -X POST -H "Content-Type: application/json" -d '<ALIAS>' -k -v -u admin:admin https://<SM_HOST>:9443/stratos/admin/cartridge/unsubscribe

{
  "stratosAdminResponse": {
    "message": "Successfully terminated the subscription with alias manula"
  }
}