{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384929009",
    "entityType": "User",
    "nonce": "0x6cbdaafae351db3c941047a90a4e7c05e9154c04c052b1e2700736f038ece28d",
    "signature": "0x092d8615246c71633f7c27570d7c4ceb696871574c7988070c644853e520d903610aac491296bbb61334947e24159bc3ea65d5b71e18845c92f3914d7eaa8f1a1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}