{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234788997",
    "entityType": "User",
    "nonce": "0x014a64ec60316b882a6638aa192775acfc54352ea05e09a73225496f9580cc5c",
    "signature": "0xf0fabc43b566ec305bb7337dc0fe3d0d2f2c69e98e65b7297eaf2dc7d601f1a004ba3b531e9dfde1ace4ed9238180d99868269742f7bbff32ca595435c81cf2f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}