{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x6188fa49053aac5296a83b9a51934c5f786aa6e8c76d4ab76a3433356a2c6c76",
    "signature": "0xbfcd6b631765b624157cffa3cbdcb608e40e8700cbe2af4d96ac0312ae7bc6da5fae421d36bb4f80bf42c676e9492f6268209ff3643b2c37389b5f29a8dcbc6e1c",
    "signer": "0x89Ea5c3EE44295e0b185a2dc22443a05245DCC50",
    "userId": "53172"
  }
}