{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xfe5adae084bed0910edcf0c759273bf8e5db751c77ba19de8b15c2af13f9d5d0",
    "signature": "0x715c7623696f8981a80498d9d387a2a24de6e0ac776c8265ce5a29876f5ba98a6381c918dbc7955a25f92b23c5755b7e91e00fc49323be552ad1f3ccc4e670d71b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}