{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "611841002",
    "entityType": "User",
    "nonce": "0x315d3f701808fdb3ea0118f64363ad78b87d464b8a2d9764c46f7ae00e2649d6",
    "signature": "0x3343c3f5c0b8b767976b6a39b517d2a4eaca5ba048fe317f36044a0fce9073f74f59c4eb7b017979b1589ec3a2ff73377d5209e71bdb227c63f92a807bd51f781c",
    "signer": "0x69d1592ed76BC3Cd9A2ed561f96E8Eed4AcAf835",
    "userId": "668195862"
  }
}