{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74183",
    "entityType": "User",
    "nonce": "0xd33e5885808ae85adb39b8c0def70c2c30183e12c4f337c8870ad9497c2137ca",
    "signature": "0x35b1fa2b2e775f35b6d7157dac9074518a60458d8c6f5e09312076fa6a26a2de4130701e9c60441b01ff6d6a587f3b44fa1c11521a488303661f4098978755061b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}