{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "730243096",
    "entityType": "User",
    "nonce": "0xd739ca5557d2e3b878d2650549b2d029b9a93a773a003489561f4b0129bb8827",
    "signature": "0x98eb2606a808f9384e3a6113c871f57103e3caabce55033b0c1c27932e968c320fa3e4de201de2ccebe905b1a36417a4653a4a24fa3faae54a5712a61395556d1b",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}