{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "88849",
    "entityType": "User",
    "nonce": "0x2d0559ba600a1bca99b55d79390ee705006261aff1a8c797fe60876ef1c5010f",
    "signature": "0x7750e27506668aca244ebd6c242ab4b156d9ce5ec428c4775d2d79cdb72d4dd14084b53c1d17232ab5d88694647974f64a81f4286e9686190e89ab2262d008521b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}