{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849737890",
    "entityType": "User",
    "nonce": "0xe36fc43f4485138f90a3099ee6f58981a21271697a613d5b70f553485ea27bf4",
    "signature": "0x8490b000f8fdf28d7e7fdbcbfb9606807d6be70769918bfe0ac7bc86e7ec65b06aa25eee1847f643ce66185f7be35701dda37c7dd0f94fba0f712b1ed29451911c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}