{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0x9eb56048d16d179327b8c21240972145af860cb51ca2c92531ef18338f1bd2cc",
    "signature": "0x9464ca46532839b1a9e6119c1389ac0ccb5a7d3ea5718c0c84a4b44a3094a5077e451fb5fd46d26f86c441dba8ed48a316031b55b02f1d333bfef87fcfa932141b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}