{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x22f7d0fa7a106cbf859e89353a912dd1d9e6a44d0f4c39a39f6d7f09c00b89ab",
    "signature": "0x1adbe0f2382dd00d633a6d0f9774e9eda743b3a7057b1333240dcfdbe60c93f545a0bc4aed6c95de37654488f2920470b7bf59339ccdab7f91b17c990a91c5071c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}