{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "399987850",
    "entityType": "User",
    "nonce": "0x45e5949aa439d5c653c9a9d60db4f006b97fde514b52d455d0342a50268a8fc7",
    "signature": "0x82cd9a3933f0ef7bb967733735bc371ae6db7af37842f3dc922c6f04095fd4ca124e191520d5768933f36a3fa7544c5545855e76ab1e7676d8d850ba906eeb4d1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}