{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x831d0612c336a2330341c82c784c35faea9b621d9714df7fc70504df727ffd90",
    "signature": "0xbb19038f812cb69cec5bf5b23c47188c8a05d16a848daed050a6f86bae2069ee56d771f169f303e68a9c08c7ce95a91929b1a58b1545437bdc36cd8e4435b44c1c",
    "signer": "0xe30f44C203C5AE52Ea3b6258Ce77B4B8Ae905Ff5",
    "userId": "417803337"
  }
}