{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4966",
    "entityType": "User",
    "nonce": "0xbb6886acc81d155928c2892cc7661f57bc7bf486f30155d7eabce5a92672c330",
    "signature": "0xf197f5ed0a4ab278d4bcb470601c5fa215d4dfa78f94cdd206ecd1222a7e2c2a4b40369d6836662c4f06d0497dfcd9eec781f3f161414f54057b125876cfbbf91c",
    "signer": "0xE9B9EEdDb579478834256Bd35E42d09cfb754b1d",
    "userId": "281227"
  }
}