{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xba9ec080bd14b8d8b2d27f93f2dd30cf0f3bd6dc9da05a43bc71946817d25e9e",
    "signature": "0xa16f63123bb8ce42e81febd0dc58bf75a034be51e3bf00c1202873ae42e6e0396317fa4b2eea316d4e7cd3cc9f30c455a4b4e51a99526fa0527b05435de1e1d91b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}