{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0x92d6f94db4e2440adfb1c10efa4839d72ede49adf99fcfc0cbefd6b79c3c2567",
    "signature": "0xcc9d145ed68ee1913b0b44b81898038d24d25a5f4a585cb660cc2f8c0d7accdc2610aff4d65814aeda004e0eb8ad5d0e5925f093240a61020df96a9c41c937451c",
    "signer": "0x4Ff77Da6D5C7286ea15F7F94FdCC04a641dE9a27",
    "userId": "512734349"
  }
}