{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x3c2be2a489eaad8f3c578a8ccad2d7dc3910acbae054f6548e17e736758c91c3",
    "signature": "0x5ec56cd907c3094c1b9c9bb59c221b3938c2a60bfd7ccf092e2301165d9f79ed123eee9ab75fc6e44a6e4c9545c78a474446762bd600eed9728f1b348da29ba61b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}