{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163526",
    "entityType": "User",
    "nonce": "0xcdb83361b514dd48a4c4b712ca65834c1dcbb8e90454ae2da2dd52e1c17d8f97",
    "signature": "0x3109e2ed01bed65b6845723092042693f5c3a5cb1595c9b73f26fdc55caca1b8175505470cd7fb8d762db39e8fe8d2b0c8880b66f1443216a33811da3c5e22771b",
    "signer": "0xfe6022590e48C8eA51d706EbF4eAe799214A737c",
    "userId": "900610030"
  }
}