{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x575c6d54ac5f42c075a133f2f12137fabd625ac03da2006f13c27e5f59b1a040",
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    "signer": "0xBbC76acc89878f0cef68B16B657aB14f79B8fb09",
    "userId": "25725515"
  }
}