Example unsigned customer data file
{
"boardSerial": "223145",
"macInUseCount": 8,
"macId0": "mac0 0x00044BAF6805 3",
"macId1": "mac1 0x00044BAF6815 3",
"macId2": "mac2 0x00044BAF6825 1",
"macId3": "mac3 0x00044BAF6835 4",
"macId6": "mac6 0x00044BAF6865 7",
"macId5": "mac5 0x00044BAF6855 6",
"macId4": "mac4 0x00044BAF6845 5",
"macId7": "mac7 0x00044BAF6875 2",
}