{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xecc2bb50c9ed15a933b9a4565cafa073c8f1a4cb026cb7f21b10b902e4879de2",
    "signature": "0xa9dab7b4ff54f15557dbc45092e697decb1f75b968f50e7daddf01f914913efe220364cc7a2bfef8b78cd2d069a5b0344a6ae1df67640593c00e2ebf77ed12d01c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}