{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "595038796",
    "entityType": "User",
    "nonce": "0x8e5c2fa0d18a30aa496da8ac68f9d9c274dacb829998d249189c7e107e7a96be",
    "signature": "0x5b81ef6fc730dc63eea43b6df39ca48540b17903937b19ed24054d7ba8ee79b00160d1cd42495ae662e546e2a189d87f907cfbb5eccb41379331d1d795e24f2a1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}