{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x174be5427c7267b8bb06af118535d62a97462ee9dd364829b0cef2b84d471ab8",
    "signature": "0xb91fe4e3f21cf4a3a10f7bd6075b6d476a52e65a98b03ef7fe11a46d01a02f394e3198a9611c7784d9d7b56267a9bb62369584f719dc838b66bf2b953903cd7a1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}