{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x68898fd4a89667867878108daea76a95d8744abb8b5546d5f00724f34ff051e9",
    "signature": "0xc176594e839f159507e0719cedff81e17c9ee3ec3918061a7e06ab9f31ef512e24fc9d554e5adf3aa661213c99c933e47584f103e3af48d06639a6977a9640bd1c",
    "signer": "0x68ce3cB584104AD4EB2c93F3A19F0E8222AE6e0c",
    "userId": "617363593"
  }
}