{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xac6056143241b928b79a30220526cd6cb36e4869c80d0fc60d00d9540ba9acd5",
    "signature": "0x2948ad1cb934c7ecf2d7f5c2e7de55a14421948b6c96e8a8158ac3b21036492902ce6248ef2b1efe1a3fb9534f55c4c21b246e0f9a96d00c70bd2620250a73871b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}