{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "993206398",
    "entityType": "User",
    "nonce": "0x7534d7c5a1f91631bc304bd2824315eed57ec69c75252960fc13b9a57d996135",
    "signature": "0xbaedc3839277f31838e07709425803670f11f26b68ad44b5a3da13d853b168636baa685949a2f60701dabe7279152cb1777f576380f31b82aafddf9ebc37c0331b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}