{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "804943096",
    "entityType": "User",
    "nonce": "0x529723b5b5447f5a6bb826335edb252e3eae013d7b7490cfa57c96ce3bd7a5c7",
    "signature": "0x53bc8cf04ba6eb7195d430a1908514777e8ca5008471b2ae6a65cf53278e65660cf3f7fd29b2c5a855d0ac3df569c69da5dfffedf8691c39e7b240948cf63fd41b",
    "signer": "0xcd864e8A0A043bf1B2DA4106C35c1daF234468a5",
    "userId": "784246910"
  }
}