{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "784583291",
    "entityType": "User",
    "nonce": "0xaa14251979261db35f7e0ea36c69aee0943fcdaa99819871a07e9f8219b03af5",
    "signature": "0x49bdad836cec4ec84e2e1d2c221a72cd655773e2cd5634829879bbdb94f76bf06cb93bcfb306e3b57ba1455664421ae3d118860a6524592210d3ffaf21bfa8311c",
    "signer": "0x796D60E9fE921C82Ef20f6329e27dD246392f542",
    "userId": "809803"
  }
}