Ubidots webhook definition for Particle (For one variable)

ubidots.json

 {
    "event": "ubidots",
    "url":
	"http://things.ubidots.com/api/v1.6/variables/<VariableID>/values",
    "headers": {
                "X-Auth-Token": "<YOUR TOKEN>"
              },
    "requestType": "POST",
    "mydevices": true,
    "json":
             {"value": "{{SPARK_EVENT_VALUE}}"}
}