anchor.diff:  + Response 204
   
   
  -## Context Entity Subscriptions [/v2/entities/{entityId}/subscriptions]
  +# Group Subscriptions
   
   ### List all subscriptions present in the system [GET /v2/subscriptions]
   
  
positive.code: * subscriptions to deal with subscriptions to context changes
  * registrations to deal with context data by registering external providers
  
  ## Retrieve the Entry Point [GET]
  
  + Response 200 (application/json)
  
  
negative.code:          }
          ]
  
  ### By type [GET /v2/entities{?type}]
  
  + Parameters
      + type: Room (optional, string) - Only retrieve entities of this type
  
  + Response 200 (application/json)
  
          [
           {
              "type": "Room",
              "id": "DC_S1_D41",
              "temperature": {
                 "value": 35.6,
                 "type": "urn:ogc:def:phenomenon:temperature",
                 "metadata": {
                     "accuracy": {
                         "type": null,
                         "value": "0.1"
                     }
                 }
              }
           },
           {
              "type": "Room",
              "id": "Boe_Idearium",
              "temperature": {
                 "value": 22,
                 "type": "urn:ogc:def:phenomenon:temperature",
                 "metadata": { }
              }
           }
          ]
  
  ### By id list [GET /v2/entities{?id,options}]
  
  + Parameters
      + id: DC_S1_D41, Boe_Idearium (optional, string) - Id list with the entities to be retrieved
      + options: keyValues (optional, string) - rendering options
      
  + Response 200 (application/json)
  
          [
  