{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3ab48cabbe1891246179064f1d5b7344746f3e235c8e848af4f8ccb525bd1f37",
    "signature": "0x045fb7612cb99b0c2a703698c4a2cee4305c323c9720fdd27773c506be98727d20afde05a3bb3e2ed4f5e90d9af967bd50846829a589dcd7a2526da646b1631e1c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}