How to Capture multiple values from a Captured long correlated parameter string

Hi,

I captured a vaule from server response which is of long string.

humantaskInfoID":"xxxx","taskSource":"REGIONAL_PC","creator":"APC","title":"Design Circuit","workflowPatterns":"1","internalTaskID":"2351de71-4630-4528-9e29-0ce0e6612383","externalTaskID":"23396716","customerName":"SHASHI PC DM TST","serviceOrderNumber":"NEW050106","workOrderNumber":" ","internalWorkOrderNumber":"1409258","relatedOrder":" ","orderVersion":" ","orderType":"NEW ACTIVITY.....

"taskAttributes":"{attribute=[{Name=PROVISIONING_TSP}, {Name=CUSTOMER_DESIRED_DUE_DATE, Value=2014-11-20T00:00:00.000-05:00}, {Name=TFAS_PRIORITY}, {Name=MCI}, {Name=TFAS_MEMO_ID}, {Name=RESTORATION_TSP}, {Name=CUSTOMER_DUE_DATE, Value=2015-11-19T00:00:00.000-05:00}, {Name=FAC}, {Name=FORMATTED_CIRCUIT_ID, Value=18OBGY501060NJ}, {Name=CLO, Value=CFS050106001}, {Name=ORDER_NUMBER, Value=NEW050106}, {Name=CDD_GREATER_THAN_CDDD, Value=Y}, {Name=CIRCUIT_ID, Value=18/OBGY/501060/   /  NJ}, {Name=CIRCUIT_STATUS, Value=ENTERED}, {Name=CIRCUIT_ACTION, Value=ADD}, {Name=TFAS_REQUESTED_BY}, {Name=PENDING_BUILD}, {Name=TASK_OBJ_DATE, Value=2015-12-30T00:00:00.000-05:00}, {Name=TFAS_CREATED_BY}, {Name=ACNA, Value=OPT}, {Name=TASK_NAME, Value=Design Circuit}, {Name=UDOS}, {Name=EDA, Value=N}, {Name=REGION, Value=NJ}, {Name=ESCALATION}]}"

I tried with strtok, with separators as ":",. but it is splitting the some values like 2015-11-19T00:00:00.000-05:00 which i don't want  and I need the entire attribute=[{..}] in single value. how can we do this?