{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44",
    "entityType": "User",
    "nonce": "0x8c2cc1b7b7c20b4d73e3da11cbf64e5b3f84a2f5a787380f8fe86c26caf21e94",
    "signature": "0x5d744c1f2ada2f25269eab4705d180b64b236c0609072f18e3d455dac55d7e7345941666847caca0b8d54bbcf41d7a1cb2c7b83417d4a4b44c9ed7cfc76fb8c51b",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}