{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad4ca9ce40d7b16c9c928e1357a86b9d2c5dc1d4790af3e79072d0bdd2178f32",
    "signature": "0x2056465b831bc0cc3b722e98e8708f145adf87368781b25600e0339115426f8c53704b01f0c687e7e911181ddaa251249e279c3eb2a9325b0cc762b4984d72391c",
    "signer": "0x9Ff4547be094313fb2408a50544ba6f9Dac2F5a7",
    "userId": "207424162"
  }
}