{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7bfc0b70fa26a9bd2b192220feae35589dd13b31702920aedb1493256aa96f7f",
    "signature": "0x9ed57a2874047b5023564b5ad68ff20170c3cb7d9b4028b906284a113fe6e41356cf9187edd445cdc8071d3465d93ee34b9462cd5bf6caf7952739d0df16ded21b",
    "signer": "0x00F1c861ECF5c859DA1489Bc228F0B9Cb5DbB012",
    "userId": "299656687"
  }
}