{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313221",
    "entityType": "User",
    "nonce": "0xb971b19794a7bb0096578bcbe22af8911d9ef485cbda9b32eea867c49db5a245",
    "signature": "0xec9f2ddd6542166185b785bdb86c157d6eb01f220293f94e741f21bf67547ad76d8d2adeab20e198601d7bd650fec20319e5a2801bb2d6df5379ca698dfd82081b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}