{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4c211c3cbd904acfc1e1a3f6d48637f2e032a77c45244414a1d6da8a7b00b404",
    "signature": "0x756ea7463e6d3c63671fb2afca5ef374ff39430fadbd0c944d0bac0b78fad33b3efe4c5b11aba23d6943dc6d0fd1bf5cff8dcc23098494730bd3b1d59310d9611b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}