{
  "manageEntity": {
    "action": "Subscribe",
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    "entityType": "User",
    "nonce": "0x8d2f52ab12d4cf5fb936b19652e24e76e05306a859db15b1412b5735f120913e",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}