{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21139",
    "entityType": "User",
    "nonce": "0xd05a95d053f3194c208bbeada3b20fbebf8757296f4f048f918a75d32bcc54c0",
    "signature": "0x185947929930c5ed8aea0175de34708566699d0c8203ebd666dd8757099394ca6f93b1ed84641ea36876bcc729a9c68b1d30fcb43960c5286fab8392886127781c",
    "signer": "0xEB69eF724F496f166f22363278C57fD1C454d2cA",
    "userId": "352613"
  }
}