{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357414",
    "entityType": "User",
    "nonce": "0xfc4d396334456da9652ed083e8615232a778e52cea99f7da79b19f502b1e973b",
    "signature": "0xe08bc6b3bbf6c9051c2efdda06acc26268ddd74a16e3cd132199174577f59e6a11f522115048b7fdeee3ee31ae369e210d04672da644641d266445bf8e87a86c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}