{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x7d4acf61cbc20ead9af70fe4881d5c175654e40f2e6b86f397a788d7ef65718c",
    "signature": "0x57d26ce18b38cbd80c1960b3b932f0affdfcaccae6ada69ba91a99282b9580246a35b760e5a83ea17199ea1bd32a9fbe0a94965f36dbd62d0697ac17929d73e91b",
    "signer": "0x49453344e6cf32d3172b6Aa3Fa67e98Efc2d6284",
    "userId": "220496640"
  }
}