{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856473940",
    "entityType": "User",
    "nonce": "0xaefe0fb7861c92ad63aee3153068aeafaf6364cb4d49826431d668f4ab687cfc",
    "signature": "0xf2fe0f4d466e40fe84e86c719413f7ae98b6d09050ee0df8f7c16e84c0b5d325227e40288f4dd3e9f9340069f1b6c7c58a1ab462c7ccbf32f42178568b9f9a801b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}