{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x5d20b97a94385405f1e08881d46f4b4bec04ca8f0d9e53bebfd667094a2e0d66",
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    "signer": "0xd543a0232b294823FE594e2f4B732D93B92B24cf",
    "userId": "2559"
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}