{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb42a4de834ff39cc852e88a0eeb0f60e7ef981c3f42242c602ae1547f9ffd2f8",
    "signature": "0x55f354d288f882814c2964c169b0c543f8c11e03e1d2fb6e0efc711f4ca1560f2ab65bb9d83e1f1d66c884e5ac8920483834decbd3842e3903d1f2d5a9bf60e11b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}