{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xa39b7872edee73595b27f3b9da33c2cfcb31c25183cc3a0382cee80008f9d61c",
    "signature": "0x7652ae052790ed355de13136772afb5d24e28dff6ccbc99693bbfe34049f0de44cd472e8af8637e69a1eb90018cb49ea07a8be8ebc27f64fa2a8043fafc484201c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}