{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "531267913",
    "entityType": "User",
    "nonce": "0xc42109d19ea09382cd388b0f62cd696a5c7c9f700b7da5c051ef032fecb61b07",
    "signature": "0x128bcc923346db75aced81400a268b5ba235d77caab49ddf2624d8daebcd71e8414743c7fcc7f675a180ba6df7d2ce2b67a564903b23c9ef5f7fea9376b1c3051c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}