{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x88ba0a7e8e09e19e9efd5d6ed68d6b8dded6c2b6872ca8170112cf2a2f7ec0a0",
    "signature": "0x6f81f3e09ef2f2f979fe16897da6d5b09564a7ce05c83dc21b6883001298b2731be9855b7ab3834480e9736ae336ff5bba204259e0d72672e3c1053186c9ba9b1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}