{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x68d1d48d40d44fac9e11c3827c5d20517fd748f2046c44807ab40772610492ec",
    "signature": "0xacea58e245a14a6dac8a47eb4717f340227a926fe596079afcddbe8435271408002795fe08dd6e181f8093281eae274e89efa6b98ff9a301478a70eda1b3a6f31c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}