{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333763354",
    "entityType": "User",
    "nonce": "0x6251135ba9937038992ff0df8444d95089a9a577d8297175a94c5978ebd14d21",
    "signature": "0x2839d450ca8aa39448366c249c40d196ad8518aafd67e9f860b1040ec77908852e0d3976f3e445f01cc0607b571d301453a31d4ea08454ecc6e2951f8c3549951c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}