{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xaccafc4de07fb2a4bc910a7b05655b36ae11747e9c7939cb19eac38ec2a30bea",
    "signature": "0xa1cd28ac11ba074631e747f77ba6d494dc52dca17d0d4dbe0b7c87bdf31c278445c384c844c342893d76fc1cdb92d7ebddac0c702f849e0ae325c1cf5a1a89751c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}