{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "179782",
    "entityType": "User",
    "nonce": "0x51f20bf80cea1d0c7a855dea915c43e96ab2f8d580d17ed009a734d185dce116",
    "signature": "0xebad6245bfece8c7631ffd430ebe8805585d5387796fe2168a04ad8a8d58536e2fe06a3433f07da443868bcb34026b4970ce871f19cc02b36e29baf0e367a7441b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}