{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xe065ae8e106223e5872dcaedc796c47457c36842bfb7b5e74c18c2de9002d02b",
    "signature": "0xb3595f57702d4bf37f8d10a73572d8c6a1d27da260789d4762aefd7dc4ca66422f93fc1a2df5ca68ea46474ac2a18cae8c4f08d37a67135a90314a5dfb98648d1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}