{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x77c72443b73e66a0b31cd863287c8e97fcdf8c9f281efdfd0ebc5aca1ea7c8b7",
    "signature": "0x72acba96f43be28ed815577aa8ff73b019b6bc5088221ad2aead2c0544cdc71e77aa4c81b6143536ba9a5d073161fb7bc595ac1a695b38c16f13832efaa73f761b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}