{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348435",
    "entityType": "User",
    "nonce": "0x28e6313eb88013a699451a6ef3e1480af66d474a9c83cc3c78909f05ccd5e2e6",
    "signature": "0x483517786ed8c75d0df84f52acaf2a4d84945c87e5716523935611c48fe07af62770e909b13edf0de4665ce436893c0359647b4c53843a589d91f9e1fce64ed21c",
    "signer": "0xD9254B079e0e1571E56512C57188F2eec899054f",
    "userId": "854498636"
  }
}