{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "254887193",
    "entityType": "User",
    "nonce": "0x7ddef17c56e5200240c81a3b01c5913679d37dae92662e86099615d695c68799",
    "signature": "0x3e49985e0bf7f569fa5c7ed8f0827e3e93d4525b89b5ce059186ef6368c61ad261384d938f007991f76a8ebe7a0640520f35053c98c72da24264d88ee6e1a5b41c",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}