{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215104",
    "entityType": "User",
    "nonce": "0xcc7b4190f9afe9e36b21e2af6df623a81e122c27e993ccefe17194c06df45db9",
    "signature": "0x5be07eddf6a4cb8e09fbbd69d67574f84094391aa8092e8a42d85adb7941529a46d44c6c51189893cb5950bf5eacc30f1d70730e49dcc1032c3db2f3f06e81731c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "103994"
  }
}