{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x3f5d15b1317f8d74f6b70b0a7821dbe36b83bf7709d1d60fa42a98de51773e43",
    "signature": "0xa1b75dc9b3455a63aedb843eb6bce5cd1d1c734dd65b68328605725e9861cee15e15bcf3c0bf2de0ebc8dc0c6ec96ae3261feafdd9e3a4e8a341763420262e1c1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}