{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17102",
    "entityType": "User",
    "nonce": "0x77c7f8d3189211b2136cdaabbe8e60ce2451dcfdde69a1d5bd69011b4be9a882",
    "signature": "0x417dc23011b6adfb90c3f47dd3ff64a26b9483e308b595646abba48b4712fb494fd141f2058dc81a25a6d5f0a0a5eea7e0b2a049576747c058d09a8607b88b911b",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}