{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0xe41439f67d409e3069eb5c93a50ff8158f5680b8905ca0c890e555c97782220d",
    "signature": "0x8c5bc94bf99d25d62ee9acf53542e5ebdc2fd0e74ea33b00ee461164e9281a9770d663790c20096b002732e4729e8d4cc9c72332af6e6f9791c1cef01c4bc2031c",
    "signer": "0xb947c8d74C81F96311AF654D6943a3828370fD24",
    "userId": "143893859"
  }
}