{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1719649",
    "entityType": "User",
    "nonce": "0x1df99d46956ae79ac61a4108413c63bf0a0896db21231a109268b7ead5316aab",
    "signature": "0xa0b2c9297f5550bc0f9a5666e1a0301c7a75cdcae32853090102ec69fbfcb8111a83510790c21136579532cac9158dd38c992d061e71191425cbb514cc98ec6f1b",
    "signer": "0xE8Ec1bAC66ca573950B30a9B5Bff2793f9CC5C29",
    "userId": "734516636"
  }
}