{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x502997fb70e90ce38a7fe4e0521b6b1c6565c10ded8f3ce8c907bd43953b5ab0",
    "signature": "0xfd7c90cd51e228c94c3a4df669ef743e118f89b832ebf4ff9706d55f4bf1882a391150c82223e18df30311de8d03552db25029a9aa11fd693b96d6bc706d9cbb1b",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}