[
  {
    "pt_pin": "ptpin1",
    "Uid": "UID_AAAAAAAAAAAA"
  },
  {
    "pt_pin": "ptpin2",
    "Uid": "UID_BBBBBBBBBB"
  },
  {
    "pt_pin": "ptpin3",
    "Uid": "UID_CCCCCCCCC"
  }
]