{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb0dc325efc17a98556c58a64bbb1d278db8b32fb85e2f5a4a93f07eb16bbfc94",
    "signature": "0x1fd65c63b597f3d92b0226394bbe211755fcfade28c63a360c245f50c30408ef41734a637b5fa608adb4d34516a081cdd41e7c4b8b9f2627503b35e28759db791c",
    "signer": "0x667d286a481e16925e97AF3EeeDBA3ef47ebC1fb",
    "userId": "340727531"
  }
}