{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7155c9e36b9c18a9d921e5c45a36fb5e29d073b700cfc0c5fae017009fddf82",
    "signature": "0xe2e81157a5213b94cc47812101abf9d97fb0eb95d2e0d5e592babcb905f9d5c86507d8c7d13fe1df0475d17dea208e1a49273b396be34ca57bbf6cfd4c8f5cbe1b",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}