{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x7630b14dcb48224da5a444114651f78f9b4dc58bd75a8a5c2dc5633074bb0210",
    "signature": "0xa2d43f5d11a02276e26215b93bc82c5888c8c51383fee2ea29f11ea0e421501949c4302d380926b531094cfbf9e0959056ba585f7a5c9e9b07f1d046d7d893321c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}