{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xbd5ad51edd88c3ee3bb56666c4168f24a6c99f08867ff50143d462767ea23993",
    "signature": "0xf69ea2f3e3df56b399c0f51ae96c089ac431d9284589754cc42e62337cc88e9a71eadde00c35b52ca367539cd8a569d1d92e2a1908016181b42e52214b3b5ef91b",
    "signer": "0xe73C39BDeD48cA3Db9192d29C973a731b3deF33f",
    "userId": "55368559"
  }
}