{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xaacdd68d23cfb08061f717bd06378e8c3db9c9db4655f0e57e578aecae7ab9c1",
    "signature": "0x2d5f88abeb1f5317bcab5f594d232ebcd09c7760a83fedf8ddead7aee0df34970709a5c66c345fe34c6afed656f4c49551855b1d6ca0a8bdb36e24f4a7faf7851b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}