{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x694ecd1647685f97f42fbd81bb3088547ce3a9688e56d2701630c4cffb599c6c",
    "signature": "0x755bd0f63a71a29a50acc26dcb5d7882f0e9024bfad7097c6555765db89f50e96bfea621ad8ff64b06dcc31073291f3b546f477a59282b9ce2a49415b9ddf6f11b",
    "signer": "0x83A4162810A55B49858D3b17aC8572D1c34eC8EE",
    "userId": "517422960"
  }
}