{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x39994a40a28b712a7259f781284df81e65230d975966785988f7cc4022348f74",
    "signature": "0x6411861c658c728c87cd5595145490aa400f24bfa0fc49e07b54c94805b4d08a42d8effaa7c905a9271558cd7898e69db5f5479b875af89a55125b04233147041b",
    "signer": "0x7Cd0ceFFA31863F9b36590f34120a299D2391F6F",
    "userId": "651253830"
  }
}