{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223331",
    "entityType": "User",
    "nonce": "0x4a7c372f26d8395d78f77fa027e97424d018cfecc31234a9f5a63d07ea9bdd58",
    "signature": "0xbce8e72bf84b1cd5d1ba212e7084ce49dc0535dd3e87f7e593456a29c1379d9c6da2ac80d244c37e7de507eb1f470122f5cabb2edd63de04db774537bcff52af1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}