{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0xb6f9b2fb9b1399d2a81e7a6d7d1202730e4c564dbe0db7f9a5c2200da1773337",
    "signature": "0x1553f9c45caad8830560073b3cd04162cca7ebc11bf6ad1514476f384852c5b41afa160ac00bad5006c2c3ea4f81203c011111e34a03d9f1291ed8778fd52c2f1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}