{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994013869",
    "entityType": "User",
    "nonce": "0x3018dd665c0e1ae0cb45bd91b4875d3008f7a5254e626058fdbea957711f8ac9",
    "signature": "0xbd542cde264a3192da4f3e1ba3df09d14eca48417c0317fc698dd7d1cf60ddaa20ed25037b157842e95fd5ed9b16c47799976e09adb4927b4fffcc84469081af1b",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}