{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1685226",
    "entityType": "User",
    "nonce": "0xe368aafe7fbbe4a4ee0f71f04118403e1281bcd93b59801bb38772003d582f46",
    "signature": "0xc32708001984d7b9432d42986c4fa0979bb59aeb04b028e44f620f449980204438fbc8ae7e94dbc07d5590e55e1bb8203ad007b9f74eeca0329f762c36d3d56c1b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}