{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153928",
    "entityType": "User",
    "nonce": "0x4255ac6e4a92678293824ae9a3238b445f9db4de5838c207ac7fd72facad93b5",
    "signature": "0xfbc2031933b12183a7f4f6fe8cb5cf0177b90e37fe897277f982909a4dd816ea276321607ec88ef326416ba3e63dde2d1b9c7e64ea48487fcf6c9028e4d69c8f1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}