{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120101",
    "entityType": "User",
    "nonce": "0x85c2d30e539d4d5845092d4609101bf547dbc515d3b4871065ba46e09742ff69",
    "signature": "0x5b69a84695bd96f8cdcda3a624a850114dd48a13bf926a9a6e9d9df1f621fb5541f12f3eefb655b0049ab5e3e663f3e8e9a39fdd64741ae84154709025faa7f81b",
    "signer": "0x480308482b6aDaE204F44FFE610e168EDdaC4d45",
    "userId": "861860640"
  }
}