{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x61cb9d9eeffc92b4c729f9db1fc4594372fabffa72ee308edc90259606373fa9",
    "signature": "0x52d6d56f163f75886f5f523548194d26ae745859c5ff6f42074ce73b18ef3c4920e95685fc7911ce346a27fcf9339429da707af105c6b8502d29cf35d16211161b",
    "signer": "0x77CB8b590124204C88755Db0622c5dDdBeb66E30",
    "userId": "888546659"
  }
}