anchor.diff:  + Request (application/json)
   
           {
  -"entities": [
  -    {
  +        "entities": [
  +        {
            "type": "Room",
            "isPattern": "true",
            "id": ".*"
  -    }
  -    ],
  -    "attributes": [
  -     "temperature"
  -    ],
  -    "reference": "http://localhost:8080/accumulate",
  -    "duration": "P1M"
  - }
  -
  -+ Response 201 (application/json)
  -
  -    + Headers
  -
  -            Location: /ngsi9
  -
  -    + Body
  -
  -            {
  -  "duration": "P1M",
  -    "subscriptionId": "52a745e011f5816465943d59"
  -  }
  +        }
  +        ],
  +        "attributes": [
  +        "temperature"
  +        ],
  +        "reference": "http://localhost:8080/accumulate",
  +        "duration": "P1M"
  +        }
  +
  ++ Response 201 (application/json)
  +
  +    + Headers
  +
  +            Location: /ngsi9
  +
  +    + Body
  +
  +            {
  +            "duration": "P1M",
  +            "subscriptionId": "52a745e011f5816465943d59"
  +            }
   
   ### Unsubscribe to Context availability operation [POST /unsubscribeContextAvailability]
   
  
positive.code: 
          {
          "subscriptionId": "52a745e011f5816465943d59"
    }
  
  + Response 201 (application/json)
  
      + Headers
  
              Location: /ngsi9
  
      + Body
  
              {
  "statusCode": {
    "code": "200",
    "reasonPhrase": "OK"
  },
      "subscriptionId": "52a745e011f5816465943d59"
    }  
    
    
    
  
  
  
  
negative.code: + Request (application/json)
  
          {
          "entities": [
          {
           "type": "Room",
           "isPattern": "true",
           "id": ".*"
          }
          ],
          "attributes": [
          "temperature"
          ],
          "reference": "http://localhost:8080/accumulate",
          "duration": "P1M"
          }
  
  + Response 201 (application/json)
  
      + Headers
  
              Location: /ngsi9
  
      + Body
  
              {
              "duration": "P1M",
              "subscriptionId": "52a745e011f5816465943d59"
              }
    
  ### Update Subscription to Context availability operation [POST /updateContextAvailabilitySubscription]
  
  