{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x24fb907044ac88de9e460826aa2ca885869f205b4884afdab902c0b396617f78",
    "signature": "0xb1d1fa3f89056e64e3612c5d2498ff886c4b1e411d8194e0bd9d52d29031d580755b2c8a7200a9dc22ab1d4db2b2eeae5db6093a2cdcdb68f575cdd654e8b5b21c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}