Resolve "Implement missing functionality of subscription management"

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Related to #385

cli/cmd/subManagementAdd.go

@@ -66,5 +66,4 @@ func init() {
 	subCmd.AddCommand(subAddCmd)
 
 	subAddCmd.Flags().StringVar(&mneUUID, "uuid", "", "network element UUID")
-
 }