{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x35c6fd30c628ee159503fec4bc55d56c52385f4d45e578d73d6261a838229d87",
    "signature": "0xf4730a543d7db766bd5e7f3bd815534e44ef9407bd01c93526b7a52d9d15c2434edab032037e3f45da3f2bc976c406eeade2ba1d10a2c7c4b6dc7d964bb596f91b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}