{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x01843e74b9276303fb1c7068745be1a07c19fd867c481828e94d95de79c4e9df",
    "signature": "0xdeff73c250e422946f8df1a72bdb5434735413010be474bf41e3e4b2b5ab4fdb0adc3e7b4935fb2d2ff6654c7df4b8928b0be9b01b7e2536159092be315f8bb51c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}