{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4ee456d3ecb6d460cbd6a7cdded56efb3ba7a5932ef2a8d3d6dad23617ccef73",
    "signature": "0xa684dc7c1cf5adfcdf29b9714ae35bb28ead2959309c9aaab6c1a84dfb534fd4215622a25ad8decaaa76dea219829afa656400f20510b80b9b2e80daea33aa461c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}