{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf16e949c9b51a053c18ad49fd1e62c5cde4a5c1042dfc659ae68b74e75245bc4",
    "signature": "0xbddfd393e8e7a4dee12e65b3887e7854b932e07c96196244cb6860e6133d94950cd0cb76b580a23851eec352d70cab722458cd2802d2e0129594103960b4c57f1c",
    "signer": "0xE7743A7400A92290CfE93A3de48a3D4A33D9E97b",
    "userId": "802326336"
  }
}