Change DUEBYDATE using API

Change DUEBYDATE using API

Hello.
I form the query: /sdpapi/request/1059?format=json&OPERATION_NAME=EDIT_REQUEST&TECHNICIAN_KEY=***&INPUT_DATA={"operation":{"details":{"technician":"Ivanov Ivan","duebydate":"1529914740000", "frduebydate":"1529914740000"}}}
but the date does not change. Tell me, please, where am I wrong?

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