{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x067ae67c06fa6f8f017c1f500ab91741add0d8003440c879a1657f786ca816d9",
    "signature": "0xcf8ee85779503b94687b8ba91f1b7b1bc62ea4ecd07905f2eecca4136ce670f25a0a168a55b4a4f71147d89a0313eacebff295cce7563cb368011d77c4169fd91c",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}