{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1a842010ac5193246b258158de0e5da001c0e403d8c52f5ba072827a9f55be37",
    "signature": "0x829a5237677e43f228b5e2cedbf9764a70d762f438f592b8519c10a063edcf913cab360dee9a3ff2cc74f4f45200110566de6534401cedaad8d2f0bc62b5ef741c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}