{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x81e5510271b98cacdd91d68559949f5b0e91c4cae5126918962de13d6a62ea48",
    "signature": "0x63e6b1a23e757db4401290fd52d99dc6440dc3631d533a66336a08146ab682e318e4cc1463b86123d9fc0c7e4026f8679e4bec15af17082ff5c0bee76f17aa751b",
    "signer": "0xca8b57A302d2922033E00904F5b482FeC42AA407",
    "userId": "679787834"
  }
}