{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617072743",
    "entityType": "User",
    "nonce": "0x9e3fc13467f1a09608d24a0039416052ce06003c03d2fc099e9b18c698cf1eb8",
    "signature": "0x0c19de63f0120af5db4cc31d30c69037eed3a502c0a7e3665384e0f94f0a4fd627a00d047608e8174928a3535f3257d32f36a698d80c2e6166b90caf063356b11b",
    "signer": "0x3765700151BA1793CFdF9F4ef4c8fECA3Ea076DA",
    "userId": "957835565"
  }
}