Добрый день!

Нужно получить параметры SLA по каждой заявке из Jira
Само текущее значение храниться в строке с текстом
Пример:
{"timeline":{"events":[{"date":1517489340878,"types":["START"]},{"date":1517490503030,"types":["STOP"]}]},"ongoingSLAData":null,"completeSLAData":[{"succeeded":true,{"timeline":{"events":[{"date":1517489340878,"types":["START"]},{"date":1517490503030,"types":["STOP"]}]},"ongoingSLAData":null,"completeSLAData":[{"succeeded":true,"goalTime":28800000,"elapsedTime":1162152,"calendarName":"Рабочее время","startTime":1517489340878,"stopTime":1517490503030}],"metricId":15,"definitionChangeDate":1495017107665,"definitionChangeMsEpoch":1495017107665,"goalsChangeDate":null,"goalsChangeMsEpoch":null,"goalTimeUpdatedDate":null,"goalTimeUpdatedMsEpoch":null,"metricCreatedDate":null}28800000,"elapsedTime":1162152,"calendarName":"Рабочее время","startTime":1517489340878,"stopTime":1517490503030}],"metricId":15,"definitionChangeDate":1495017107665,"definitionChangeMsEpoch":1495017107665,"goalsChangeDate":null,"goalsChangeMsEpoch":null,"goalTimeUpdatedDate":null,"goalTimeUpdatedMsEpoch":null,"metricCreatedDate":null}

Мне нужно получить все, что между "goalTime": ДО ,"