{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x511e7a628ccf5152f1ea60d97e44e838c3cb85f5e5663f627ddb1d6c75d94a30",
    "signature": "0x6e6e2a74e6086583772c25b0b501aa9afadae0002a91a3ddda2fbd06612e35854bccfdfbbe269b2ae9b45f9d8474bd622931f3fe179f525de8706fb5d040961f1b",
    "signer": "0x565Df190Ec9CEf88C79edF64bdD3Ce7305197601",
    "userId": "983884919"
  }
}