{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "459589619",
    "entityType": "User",
    "nonce": "0x2f4405835104688d1facbdad772c7b71c50ecb76d8d7ac6bc920f4f4902613b5",
    "signature": "0x8f6fbfdb27ea344c58799b31bf7598cb8743609da2c787ed5a6a49c0e94090fe07333ce12cc31ad794c32163ef0740e93b199cbc836cf49eec641825998a20d21b",
    "signer": "0x888539CE68FE63D7A7A333a198827e2C53c5A618",
    "userId": "887482130"
  }
}