{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xef5f864f63a24f5be82302022daeecfb7a73a9628f868d07d48b3bf01281b38b",
    "signature": "0x30638133385e173f50ce312777bf50056eda86038c303e7c00b2b02d5aec0c2836085603011bdcca67500fa92a0ca7cd5ef80394313fa615395d63900d2f96981c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}