{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf01189065b37763fd274729dbd368c731a9b2e53a166b78e6783ed834223f1d8",
    "signature": "0x3ac3864b4a28a586868cc849abbc1f77728709ea225b55be36486fe8f0fa7bba4cf5210921c2cfb9ee9967e9f5ed0f3a3903e040392b29c2ac429a1da4e613581b",
    "signer": "0xdB6BB977Bd11cf71264f275bFc4e7667322b1c65",
    "userId": "441977048"
  }
}