{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xafcd425aea8ef21bea16e5a96173e34a4122a16ccf659d307e72aead2c7d24e3",
    "signature": "0x035d0a0a2c5647f7ad3b1467d48af4871445ed79ca675766f5a6a53411a8da386bacd80c918354854ee07d062d5898c8a85c22eb04c9b0c2ce2acdd018a1e9a61c",
    "signer": "0x5442166ef935Ce2C48B7d89A27A0ADbFCA23fb3B",
    "userId": "572724018"
  }
}