{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175201368",
    "entityType": "User",
    "nonce": "0x4f48cc779166973eba1ead9eb0257818552a32b98f56205f26450256810d57d8",
    "signature": "0xbfebb7bb019b74c0be4a2b2e70ad7cc6b65d76374525129339578ae03c7125102e4a2f529ae0127c2d03e55aaa0a99e5c110a7af095b9468683a2f32d82bd0eb1c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}