{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc890cd7be162a4840c381d9b164073d1fddc14c8d7c7be5b0ceacaaf3d5bd28b",
    "signature": "0x8b0ca7ff9bc1cc7ea68bbf4072ddc65b08508e795d05da532b7a22356ce1ad622aba4beb5a33b6c344827219b3e9ce43d68fab3ff6f059fa2c4dfc6ea54c55171b",
    "signer": "0xEcaf00A23f6F13d4F36c2F1374c46Ef6717A6A75",
    "userId": "366110039"
  }
}