{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xddc60e417345e9c4b3bd3e7152809e3e2b43bf422b7d44b652bd9724b3a7b3ff",
    "signature": "0x0e35a11c26a1c2f65759670400851d94474b00881a985181103a4d901b01133d7a4597a30523cc6d7b86eb2a0524e952dfa296ae96ddf14658aa85c5227424a21c",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}