{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x33e922f0746cf914a387aee893444b43ead2d651def7c57c937861782b520200",
    "signature": "0xf537383c79bc6b3cc2f23ad42288df02153d819012bda606024bc9256593989456136108361869581146523248ac80c42fbb50944fcd09456217e68201d13a5c1c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}