{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x706ef9dd3e9ea489f4897b57346fa6a816a928d6f5f5b79d3ba3797e6c5ab6f0",
    "signature": "0x5912fc1b5e96a61c42fd1bbb0871e428ee6f7f22c853b3dab007f14b75dc6a791d65b8fd05d1e9bcb493146097d4a1c9794beb5a20f313d671bee24f8bea40121c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}