ADMIN_MEMBERSHIP_SUBSCRIPTION_MANAGE ADMIN Endpoint
  /rpc/admin/?method=ADMIN_MEMBERSHIP_SUBSCRIPTION_MANAGE  
  This method is slightly unusual in that either the creating space or the target space can add, modify, and delete records.  
  Object: 340. Click here for more information.  
  PARAMETERS TYPE  
  Id Numeric  
  Remove Numeric 1/0
       
  AllSpaces Text (1) Y / N [default]. For Super Users only, update across all spaces
  EndDate Date Defaults to 10 years
  Membership Numeric Memberships are defined in the creating space, as per ADMIN_MEMBERSHIP_MANAGE
  Notes Text (2000)  
  Registration Numeric Pass this if you are the creator space to specify which registration you are adding the membership to
  StartDate Date Defaults to today
  Status Numeric 1 = Enabled [default], 2 = Disabled
  SubscriptionType Numeric 1 = Single [default], 2 = Bulk
  RETURN  
  Id