{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395416959",
    "entityType": "User",
    "nonce": "0x43f229cd79842a0fde8c825857d56da152899f6b3528e508153a1d81b913cc7c",
    "signature": "0x885e18eb9f52b0b5f4d87eacd17f2e2b285c23151cd6245014b18d8d2e5f786f3af7f199e6efd620e2a5e1e6dd81e0180f7066d6f83a5f617233ec0c0896a26e1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}