{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297007",
    "entityType": "User",
    "nonce": "0x81856806466ad4d19fa9687d003203b1e9b069786a15d5b45b080c71737cf4d2",
    "signature": "0xf80b212c57ac647ca224b13b39464a008b9ad576e03f0c36fd08576f2d5880f42835d34f64db2ce7dbc320034ad329826294aef0fd01df1fb8b97ebb22a4a4f41b",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}