{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x8d7b05c42a039e8fdff4ec762b255dcc706bb2b995484c2bba5fc0900554b6f1",
    "signature": "0x2a9918e6e4cf6ba7cb30f85ae3e20bbbc6ad25a7f13ebeabd62170b0650b3c6f4e85422aa64b6d5b3b516dd1e4cdad541713bf50cb7ffddf34c16933a2644bf31b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}