{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319704",
    "entityType": "User",
    "nonce": "0x7f751defc1a393f61f77d60248d72ae38dc4446744b8bcdb96fc4cd19aaaf4f2",
    "signature": "0xaec3c5ca8d7006fe48f7352080f0c312188c767e532003751f8a3aa6ccf6e5603f1be16eeeaddfe04f14524ea80b902c47d30b985a4b700bd17044450e4ca1591c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}