{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x9f85bedd8cc3e7f6d9bd1c87b4aaa593835a6c7f842580e673a9b4edb7527332",
    "signature": "0x319fb4ac75b6d1f68cc65f2d9555991c0f6d6c1d0cb4b8a2c8a62631951447180eb9d21fd0aaac58040504a14cfe25de06691e02067e26523d89cbd0065497101c",
    "signer": "0x303474a52E301Be9e4641439FC0b3A8C471B1d66",
    "userId": "595883218"
  }
}