{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa27c82790001dd128fd25b452cc72d963e104405a2322881ae79ccf40679d7cd",
    "signature": "0xec688f31c933db31b709f732c1a71c6093aa6f781db822261779e95eb06f64387178e953b41c775ef4993e830a48e7714345a9caede96a9bc8a56b82348ad0c11c",
    "signer": "0x54ac7C3663316Ac940EA1Cfd1FAB49024eE24156",
    "userId": "486383100"
  }
}