CONTACT_SUBSCRIPTION_MANAGE CONTACT Endpoint
  /rpc/contact/?method=CONTACT_SUBSCRIPTION_MANAGE  
  Object: 379. Click here for more information.  
  PARAMETERS    
  DataReturn Text A comma delimited list of advanced search fields to be returned after a successful save
  Id Numeric  
  Remove Numeric Pass '1' to remove the item. You can delete by passing the id (as per usual), or by ContactPerson & Group
       
  BookingDate Date  
  ContactBusiness Numeric You must pass at least one of ContactBusiness and ContactPerson
  ContactPerson Numeric  
  EndDate Date  
  Notes Text (2000)  
  StartDate Date  
  Status Numeric As defined via SETUP_CONTACT_SUBSCRIPTION_STATUS_MANAGE
  Title Text (50)  
  Type Numeric As defined via SETUP_CONTACT_SUBSCRIPTION_TYPE_MANAGE
  RETURN  
  id