{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x57da5499430b0201b13b9671648e60854789cd5fa2d03a03c336f4fa14c69c77",
    "signature": "0x5ae88e04811c3dfaf9c7d0477ac4c1910351ccde9d324d5fed1083acad2aa28e3f84b7056b9c6567b1ddc8bc7acc99524939e2d887f0900283d40c2cd8d4d14f1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}