{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "813014034",
    "entityType": "User",
    "nonce": "0x7a619b56d88c0209f06c5e76c29ef7a11838ad01199f6a042f600aa80c213c6e",
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    "signer": "0x10805E046e879D8e4503D67e495Fd1d280142e5D",
    "userId": "355715"
  }
}