{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x51eace3091ddd76d7ea0013bbbbffe5703ca70941c78ccb33dec7488fa8afe23",
    "signature": "0x6d64db5348f7c847ec9184cf287833a70957ecbf998c2ea5119ef661949b8cea6ab26d80a05d0dfbb6090673c63d9d5a0c54c6560017495d54d31e21d8d6c5231b",
    "signer": "0xb5902ac1A81A6B795210DdEB50e8F1FdaC9aed97",
    "userId": "842982090"
  }
}