{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xa1399891904bfd0574cf041478621e3f86da62f6e696a037aaf0126d5c6b2b8b",
    "signature": "0xcdf305f1101e67f2bfc431eab3290d678707ac22550ae9cba51744970fbbddfa5c79c6be85a8313871e9a2095c5bb81f169086bfe02d70fa4542e8480da5bfe51b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}