{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xc054b5b07ce7038467b52d1869671dff9921ffd553f40ea7f2f148f50e5d524f",
    "signature": "0x8a59715494a5a111d7fdce59f71ac2464c75f50c04d498a9d4279a120a7949964644a44dd5627610aa929356ee9cf5a5725ea37a0763dfc05c4ca6b03f0bff7b1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}