JSON sent: {“app_id”:”3b154286-ad8f-4802-b820-98b9f185306b”,”filters”:[{“field”:”tag”,”key”:”mother_tongue”,”relation”:”=”,”value”:”Bingo”}],”data”:{“foo”:”bar”},”url”:”http:\/\/onlinelanguage.info\/?page_id=1204″,”contents”:{“en”:”Click here”}} JSON received: {“allresponses”:”{\”id\”:\”\”,\”recipients\”:0,\”errors\”:[\”All included players are not subscribed\”]}”}