{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "355751732",
    "entityType": "Notification",
    "nonce": "0x4d3ab9630270b36b9ae89afb53c4436234eab5133a68f10eb6b2d2dc2e237766",
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    "signer": "0xDA1112c8a9EbEB6a604074A2787CC0B6EdB0Cf29",
    "userId": "1489"
  }
}