{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13066",
    "entityType": "User",
    "nonce": "0xa9d12a19978fe8d0023c3543dd26462a4598fc1c27f78afd6422edd81aa885f6",
    "signature": "0xc9b318c8e2174a0d60f09ab37c0eef53bc2418daa33e3af98d6aef1196e8da9b127970045873ebb7ebf13aecd0b714ba76a9966373c1499b0c552e267ca97fa41b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}