{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x5a88ea6d249c0a6290cc5f52b20c1c30f42feb9cc8c40d38d64fb87ec4cb0a47",
    "signature": "0x7a85d46b90df64b5109773fde72ca1f2395101b63b6e89bcff1032e7f70de30033e4ad0b5ca2fd6197e3b660940666616b8bdc73fa321a822b59264a917b52821c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}