{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x5ed6bab7d2c67f409684f766d12d5e83e40eb6f7e6f6c8b868711ac4b386f907",
    "signature": "0x3df781ca6d3fb375e01104582e3eeb0a1192b723a1dbc0c5a8f26611ccf305037ee16a50ef4437fe195ee5b1c622f1e75f3f5152c77c5b8fd2e060a7a9c998291b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}