{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x602d099b0c06ce0fdcdbdb85d4d7f1d8b36a9ef99ec7017cb122163f5d8a4914",
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    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}