{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x886b17dcd568a022b6dbb237192b043eb93daaab592ff1c23a0de9632baa5647",
    "signature": "0x3fa223544eae4a7c316cd77b23850d564b1cba1adb068d785d41143ba0ec2e903e79c0aa67e1b4f39531ea708b0d78f8d38c647d44d3df87a3e4f380c7be8ceb1c",
    "signer": "0xCFAd6E193e3d4A3A3243FE7D3a1c7F638f121Ae4",
    "userId": "88904142"
  }
}