{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb40389f4d82bb651fd3c031e175d12c11a97e8a3c03cde64e1236c2de6e53a97",
    "signature": "0x6e98e5add71d84051a637303b3f2e107936c4e7244464f0bdde3f3833ac21e3965685c29f8c1c41f5bfa28e5c3d33cf7803de44c2ee38d39d8e75a19e58940661c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}