{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223331",
    "entityType": "User",
    "nonce": "0xf1f66d27a2053a285fe5d52966dd7ddd4f922b47ee1891263a748afc96ffe319",
    "signature": "0x1407360ddc8d61fa18d438fafc660a9b8bcd329ac5d2c82ffaca20ed6fb4b7253987f52b9152b07759472bbc4b45d04015a703efa6b426eae6d450a8064d70d61b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}