{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329516",
    "entityType": "User",
    "nonce": "0x8be6f33243bee75c9d56cdb956928c55caf3bf003c4f29d4a11d6003cfe7b8b5",
    "signature": "0x59e6aadfc5c0dc1499cea065c432a4d5b5013580b7e1bfb709c3f8eb84c8167155fc759a8ad4bc26b6709e8f921211e356a4bea023f1647d81f572c8e6a673451b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}