{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "853591809",
    "entityType": "User",
    "nonce": "0xcb68cb069657a82dbbf4b76c57cd653a9988c68c23cad825b75070d31d6d89ca",
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    "signer": "0x4998e5Ae30a5157C617ba9b6BD651130a779a4E2",
    "userId": "914906988"
  }
}