{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8392543f1585bd39704b79d9c9de3197f73e742cf5a7d900740cbfaef5e94a0b",
    "signature": "0x70c55537d709027ccc08710e997cdaff60d6eaf6568af4e0c57b3831387746ba730879858152e3b9613281bae37a7ce8e98026ca38cdb30197705d7810a900021b",
    "signer": "0xA2ba31cfEDf1e9e2b22EdeE7fBcC3A5da9C1a3f1",
    "userId": "802353016"
  }
}