{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "971292289",
    "entityType": "User",
    "nonce": "0x18bc8c97fb71924e91094b696b7f043efcc7a52ba1ef8fe52667474de80e5346",
    "signature": "0xcda08f5bcd3cc166fc215e9fce9ed930d8d7fa0ee67e14b8233679521dc275ab77124e1defbb4c2117b4c64c3b37ef98829893672ac0207ddda5e879e246d8691c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}