{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xa01c3fdb0d42a347c758c65817ee711fda4c2338c8e4da355adbc374ec896aef",
    "signature": "0xfe1b8908cb6d691b649f18a1ebf917ac0a1aff8f28e05a5bf8fa08dcd4ca93f6732e3e7db1561c16ff1fca736710d7cc4038938869c11337960c7cd390dfaa4d1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}