{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xf014103297901d569c451ee2ef8cd56527ab658d14a02443d55540216fe3bdc7",
    "signature": "0x4c6c79ff3aaa95b64936c1293b59ff00db46f701db225e3d42db5099cb8fbca241f903a4e63f82e60faf0b7cf13f1922c9145b4125043ac220e1056e31ab233b1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}