{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "4281",
    "entityType": "Notification",
    "nonce": "0x5fce737634d51e0e4ba4fa29a60c8f11629c73b4e64076a12015d5281d099682",
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    "signer": "0x15B583eF01b20456cE3159EB80C92179E43d10E3",
    "userId": "5269991"
  }
}