{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb651a1674a628e18d7becff39b72b830b14d2cb24a8c05d3fdafecda990326a9",
    "signature": "0x731e2f557c187b354cd4b9b06e80e6dcdf67edbd654aeb3db42bbe79230e255710a52c1acd32b36684df682612969ecd21650b0a660301816e21902b289c59c71c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}