{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139441",
    "entityType": "User",
    "nonce": "0xfb6808164543fd228213b01b09660f2c7d42375262042be5d066e3996d79e5bd",
    "signature": "0xf8637d3dd2c4daaf0bac395eb733c58345f52f07325547c39e56e9d21e999f526af8a043ce73c49d8a13d28b1379f4ebf6167d673e19a594b919ae5986813b781b",
    "signer": "0x5823e56644991c5f5f29870830175996Edb011c0",
    "userId": "433764837"
  }
}