{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "378559189",
    "entityType": "User",
    "nonce": "0x9420f03134e8e8dc63d1c6851a27ba80dc95bd62fca0ef2c328d707ef35ba446",
    "signature": "0x51283ecd20125b07534e9fc08fa95b48d9a4a065202bcca26690bb3d1ae9fdfb7d873dada83b8b1445a12dcb73d7c90396a6c3ad59e89e85497828d43b18e2e41b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}