{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x123a335f8e853bc4d9210cd7562b95b1675e7832a6ff3e821936d382794fa45a",
    "signature": "0xbb6754cab8ccb663e4a8316ec6bd8ffd1b14b0d48ee8e231214373980f65f92433a8384e7567ad6c30c5c19b63b15e7f846969bacebc25b231ea3c5d5b3260861b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}