{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xdb3eac728c94e88edbf2ee905c22060aed953ffcd41709bc97a1500ab47c3ec6",
    "signature": "0xab210ea4c3ca23c9a6b23d451aabdf9e7f7b9c685acd9a2acbfa308982c53dba4cb525a925d93fd8acfab93524a1cffa20f70d629de75927a324e4b0a7b0489e1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}