{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x1c8ee5c480e6cba7fb183528e5e5c768e542b898fbcaca1a163c0ace35fd319a",
    "signature": "0xad625690240bd4b88074dd5d4dbf1fa5a14a144d51a311d01a1e5386868b89cd24d7d8649d43ff75aa0174d51153841e7362e426886aecea8ff06df41448c6031b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}