{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333725",
    "entityType": "User",
    "nonce": "0xbb44e8812bff212aad0f7b73fffbc2abb0f2cec86db045ade9d6c7b1cad7e9af",
    "signature": "0x6ee7d9720bef020d4ace542a1b1a50d04a59ffb51761c83b4cc1adbd83a8392f1edbdf82db1b704b66aa2602c7779df3946c8de85505b69174782bac0710f6f01c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}