{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xff05f88d57a2906b62f53f0dbf8706fd2a968aba3fc6c5f800d64744cecc5080",
    "signature": "0xa43c23019a9038f6ef132e8a272fa4ad6a26ddafc8ac8d86d6e2ab761172a3b565c414f092c6d25bb0cbd662ddb595a58c962c58e911024400722882351bc3b61c",
    "signer": "0x9795fdFFB0f6D8C16721D324F9bC3A50b3F7Ed44",
    "userId": "648710515"
  }
}