{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0x807e8a62fb41db52a4a93f3a70a86a72a8311c3085e7db996ac415ff921da562",
    "signature": "0xab6863447469f13d122fd68d8d3c7c36f3953a16b8d4b2fa2184bd4a41bc90ad619040a995cd1b94b1ed30dc28622568cc6efaa12f1b4d73e895a8ba920b06f71c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}