{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354640",
    "entityType": "User",
    "nonce": "0x71568c92063214e9d2d90923d29633e2bb30eba1a3106fcfbd5b516e90d71af2",
    "signature": "0x9cf8a009262051704012a984556ae6cc15c4d49d180d8fae8226af2766da4a8134270e670733be64d7c6f68a300069fc87262ee3cea9d2824f869ab4cad561991c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}