{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x7472e31590f329762ec2cc10328ac607832f32171cc898017623139de10e0cde",
    "signature": "0xa8996ba1ea6910cb5300aba1d14c76f3578446a587f5aeac9ee514e47dedbb1f6f792372019399c18d2e32495fb1851998887aff6c370148627b37da3442d9f11b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}