{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3a263dec462e8f3d97f36e930e2e526815a6ad8c108127328107e2fd08622916",
    "signature": "0xe655de9068d6fe78e1406981f1a31feddef16f09d9d818f7d5aeacfa41f31acd1f8f533f64428c3c817924200d7d5be308b098d49c85d77031fa2346d1ebdfe01b",
    "signer": "0x9dF227B55c2eD3c2A15f8e339BFA56dCa2FF2cE3",
    "userId": "249947071"
  }
}