{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54547",
    "entityType": "User",
    "nonce": "0x068cbb8c5a213649fa5f8003846f7d4fcad226dd155a28d359b84c9b833bc317",
    "signature": "0x3cd0b6c30311580ccba35b1d6c05fa55e8299c6e8f3ec8b2b8738ba6e64bd5b32d128723dbba378653d6f88facf3fd5cb165cfbd8449fb84ad11d3ab3745346c1c",
    "signer": "0x03dB479a8E887D4696e53C007b70b3EA318049d2",
    "userId": "773573937"
  }
}