{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xb0d5b484383070e1e304ad740b69d424d2b9f1ea5a9edabf3418dbb84bc29589",
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    "signer": "0xC3e337F140B5763dDffec24D1A410A04080A57Ff",
    "userId": "201554951"
  }
}