{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4b374054e1d2d57c9c8fd662d10643418562230a4f809aa6bfe1636309984bb3",
    "signature": "0x4197cf3d444d7acd11e5db58e3e5b9a187ae2941d46ed860056cd66cbe63198e15b804456763020996337ad96ac205e7bfad63c4d074baa9feffc7bd85ca6dd21c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}