{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x3842c15539067795b1820244f160962e335fb342f63be0030f615b9c81cf1a82",
    "signature": "0x039053d457f4604ce8c3211bdb08c2cb74898513ca53658f963bb746a659c48842e5779e37ec56c121181e47cf1b3d2effc139aa7597347a6ee205af62034db41c",
    "signer": "0xb0feA4543fef5C1F3F492c9D638f3A94fee1e65e",
    "userId": "710516026"
  }
}