{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320136233",
    "entityType": "User",
    "nonce": "0x6d7d05d0bd31a598d9f522c26a75a0dc40d85f73efa4019deb691475ac8cf821",
    "signature": "0x66b66c8aea05383f3433a55442fd770ca8169b85c5275f8aaeeb8362436b70877a0085fbf4eceb6075ed751e37bbbc93165741ca202ab1747a58f61e8adce5e31b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}