{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x395bae7a39536bf04dbaa55328b5dc1e9863e9ed6470b137e1e94eb3ac9256db",
    "signature": "0x778e8c4d96768cbe973df08599c8a2bc0698fe908de35ad8837d4a43f5987210792df0f983dda16a792640679258025eb085f0c9a3a4ab217baf17233ea4da211b",
    "signer": "0xaCa7953CD273B28Ac40A1949c2f4E31562A30c91",
    "userId": "223927047"
  }
}