{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121227",
    "entityType": "User",
    "nonce": "0x3057d09a512ce05fef1db2bf3f0ce04d1e1deb907ae90350f98726e0c661b208",
    "signature": "0xbe8ed67c6b1c9df7423b249e0bc1aed66a7333289c966f37c940c090d35bdaa30c257056f836abc70569cf859f9b7c07dcca2a44de532b3673ae9500fc7de8051b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}