{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0xb503a5f2079e436fcb2bfa8397002aa523e898ee297c10e54007bfb2c3ff234e",
    "signature": "0x8bebafd6bb7ebb5f12f8f53b71709451734f80e8ff6a9941ebb33265f29ccffd2ca5746bc8e0f68653f3ea0328251d24c23ee829dc29007f0f86a995c8e15fca1b",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}