{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "869329246",
    "entityType": "User",
    "nonce": "0xa52fd6d10560567fef26ca21bd1a7bf3b096daef9708ef37a986505a766ff3aa",
    "signature": "0x22b40ff3b478e0d6f44617512f23f40f6fc01a6119ccdb9faaaadfd91702afe9001dabef00a4330ca43bbff2529d9eb17ad46ead0853138ece97576d9b44fce51c",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}