{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x281f76e7b414696bdb7e5d188241bfe4ca3eb115b70bbe696e94a77f4733b20a",
    "signature": "0x2d3ac592eef16698dc40a9402aff8b19b17c33bc2b5eaa6ffa272a3e8bdbac5a2174e099031b7d6b8a11106759efc723e5d6cf1c05149bcb78a27a518b4dabde1b",
    "signer": "0xB53778Be4Da709e4De572eA8dd883ac2c638c0de",
    "userId": "865697225"
  }
}