{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xadbeb1c6f6d43837e9135a98971754d080550d0d1b665b29f986c8495b6bb42b",
    "signature": "0x4975c2c4e9310edfe3d8622379bf1ef6bd55787685537e4310eac083309b7f646f7aa221bd9e4bafdaf18d7c135cbbcd67c3d02d4f3fad25bef1d9f955bbcb721b",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}