{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb6c8498d26a185680e95c657103ce7d22f7e8668e179f903ceb1ef1e518a78a3",
    "signature": "0x832a371ad0bee9ed6115d69dcc73674c5164e1304986ea092c927c633b2f41867eca785b27cda71c6ebfee5a48756d73002a0426edc055914270a927ed522e541b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}