CONTACT_ATTRIBUTE_MANAGE CONTACT Endpoint
  /rpc/contact/?method=CONTACT_ATTRIBUTE_MANAGE  
     
  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
       
  Attribute Numeric As defined via SETUP_CONTACT_ATTRIBUTE_MANAGE
  ContactBusiness Numeric You must pass at least one of ContactBusiness and ContactPerson
  ContactPerson Numeric  
  EndDate Date  
  EndDateTimeZone Numeric  
  Notes Text (2000)  
  OpenBadgeURL Text (250)  
  StartDate Date  
  StartDateTimeZone Numeric  
  RETURN  
  id