{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584414732",
    "entityType": "User",
    "nonce": "0xd4d4723024d9281651b3975b1ee27ca59e6ea5063967d60fb06d0b30dfde74e5",
    "signature": "0x1ddb9d81e8affb2e95850b97d127c298d7273c5a99f6a2ecea4058922b2f30cb33ec954de1fcd1522165898d87c57d6667c17cabe77466efa38a17a3f7df56db1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}