{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x43e311aaf0edc1cd94fd6dad08379e95b29bb428759a9185ac68d48d0f4065ca",
    "signature": "0xb6c870ebf64b1f2879304e15ef1048d59205fbd0ccc9befe0c20cd8479be69c67b0a0395f5438ead762dfc2252d777ae53e90e7416a3f6bf881ac010018a84721b",
    "signer": "0x692047A153aC0554dE74a24AB8012BaeA526f272",
    "userId": "893991487"
  }
}