{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb193162a95eb502dfedb363bcdb6f8565637be7b63e3673bf3ccd2a29dbd54dc",
    "signature": "0x2fb5245f944965b1447d7e515d383a07ddf6c6c35e5391b9a677053f374ee4244cedcea8f3f76c45eeed032942b665772f57a43120f0fbb8cc7d20a99c0860771b",
    "signer": "0xA3cE379a869a9bc11779f3e73005B4e19771e5fA",
    "userId": "754921422"
  }
}