{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x18699b0ed5c7b9f6b184e36c78300556ebeaae0a41f2986c120098c7be437029",
    "signature": "0x3ac516240759d1fefedffe26d779f2b7912f8daaae9294b9d48a713ece3215940ee8bd769db312175f4a42d62a996e188ccce3969ffe659a47d2e380eeb08ea21c",
    "signer": "0x80a0405FB3B9d86d11d9837558C400BE65BE42a4",
    "userId": "464100900"
  }
}