{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x80e11cb0606a81ba74aa29ae3fb64ac1ac21fc04b47638873cbe0d3c1596433f",
    "signature": "0x892cb2b99fc207a96aaa256b6be8aaecacc667a5ee4be570a442299096d16ec85f1334ff6f3d8b3268c89fad69c935d65983fdf36806eb3f327718f2c40c89d61b",
    "signer": "0xb24fc64a16e8Fd012781E20Ed3bb9663653CaF9F",
    "userId": "901458403"
  }
}