{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xfaac924c08cc9ee13820dfbeeebde1f5e424efd04f35e48dd012a2b08e431c52",
    "signature": "0xe10e9f3ae8fa7b7289c896a73551d745d0f97c925b07a75b3bfe6c52f830a433651c164ac5308fa2f688b7d2d92adb1af6caedc7c99f6809ad28c98cf0924de71c",
    "signer": "0x7a991F28f8c946030bE26Eb8408414771247985d",
    "userId": "514559071"
  }
}