{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "246308164",
    "entityType": "User",
    "nonce": "0xf4f6619345a8ca47e710749188607ba54295686b6033cc4cd7159d14dfe759b2",
    "signature": "0x3a9d22bf311ccfed02c1b46f457c6ec2879e73ec944fbf96e19375a0c5d715dc172bf86e1e0d2bfb2b43d2230904d88d2c4c105c57db1f856e40ef8d3c7fb7731b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}