{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xcdd9ace78f0ff9eceac2facf8f442701bcbdbad3ba3ce876022fda074e7c5aef",
    "signature": "0x721fb79730a26cc1ac5ad36f2dc8edde12d0c764a4b22c0e84c62ef3c3f8414f785805f0de0d1e1a7926db15424751a5bac6fe1e0c31ba1c75bb3e5ebdc02ea81c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}