{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x952da5fc3652e442c83fe018c694e1b4b06922df870729424c3940137817bb77",
    "signature": "0x211c2be02990a8998a659072a80828f8cbca7b8a9b2c7b2efb2ff07b0a8baeec47bae6e1274fbd750a96981c789e52cd7635fa29506c1d7d196c21efd267da101c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}