anchor.diff:            "country": "Spain"
           }
   
  -### Update attribute value [PUT /v2/entities/{entityId}/attrs/{attrName}/value{?type}]
  +### Update Attribute Value [PUT /v2/entities/{entityId}/attrs/{attrName}/value{?type}]
   
   The request payload is the new attribute value.
   
  
positive.code:           }
          }
  
  ### Retrieve entity attributes [GET /v2/entities/{entityId}/attrs{?type,attrs,metadata,options}]
  
  This request is similar to retreiving the whole entity, however this one omits the `id` and `type`
  fields.
  
negative.code: 
  + Response 204
  
  ### Delete Registration [DELETE /v2/registrations/{registrationId}]
  
  Cancels a context provider registration.
  
  Response:
  
  