{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x9bd85892e75a42f5fd9a5e26c5e46037c4ad43d2c41265ac2f1ca4375f7de818",
    "signature": "0x8d41fec070f5dc23a60e1b83f5474c59246e2c0f6a731e59af3301ff75b9d68968f19a308307a11884ddc5f1f6ef48fa90e72b160c91a6f82c4a3f25438594c41b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}