{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x2b9715f9d306b9cda1b5eab924af39f3b9595589621a6dc5b964187cf6fa707a",
    "signature": "0xbc74031097cd8489e73564aed3698f862ce339e4f09ac7244e70cfe4b4e4a94170d977d9ae3a9cb98f75de123a70bfc51a1b3af37e5a67b13a3888ad4ee4b8ff1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}