{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x266c405b6208aa88061cb106c364b934def0f48fb1c7d6877af2331c07fdfbaa",
    "signature": "0x222485b1f780d22fdbce32109714166bda6f05f58f4cf655b6c13d3179f7ff763d7268d683cc6db6910b4e70c0aa8265dda18b9d189cbb28c9afc65e161c6fba1b",
    "signer": "0xDe0BD424649940F363DdF0AB963aF68Eeb1b243c",
    "userId": "576322271"
  }
}