{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdc7b85c9b22df667b0f3558e122c02f874779abf1095ffdcd531a063934cb954",
    "signature": "0xf9c21f9b8ae5ab245e431add256b1a336f5b59359e6403679125a54dc917def337298c2f4c8c59c4849fadecd5d959824374e164c48be9ce87e05a850c27cbf81b",
    "signer": "0xd3cFd8491F92ff012f5bcB989eDf511Ab9A99891",
    "userId": "311259731"
  }
}