{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xd4e74102151574b1a2cb4f3a7631be9a46b81a4401c402c2f30517ecbc4c1c99",
    "signature": "0xbaa9776ce7ee8ee80866aefd4caae4132e5e46b7d13bf41bf06e36c3d363d37b1b965d292723137c99ccd8dc8663bfba619b87873e96654bbae78c9fbe358ddd1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}