anchor.diff:  Response:
   
   * Successful operation uses 204 No Content
  -* Errors use a non-200 and (optionally) an error payload. See subsection on Error Responses for more details.
  +* Errors use a non-200 and (optionally) an error payload. See subsection on "Error Responses" for more details.
   
   + Parameters 
       + entityId (required, string) - Entity id to be updated
  
positive.code: 
  The request payload is an object representing the new attributes data. Previous attribute data
  is replaced by the one in the request. The object follows the JSON representation for attributes
  (described in a section above).
  
  Response:
  
  * Successful operation uses 204 No Content
  * Errors use a non-200 and (optionally) an error payload. See subsection on Error Responses for more details.
  
  + Parameters
      + entityId: Bcn_Welt (required, string) - Entity ID
  
negative.code: ### Replace all entity attributes [PUT /v2/entities/{entityId}/attrs{?type,options}]
  
  The request payload is an object representing the new entity attributes. The object follows
  the JSON entity representation format (described in a "JSON Entity Representation" above), except that `id` and `type`
  are not allowed.
  
  The attributes previously existing in the entity are removed and replaced by the ones in the
  