{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe40f76d92402d1a5fdaa47b341f9522eaa1e869520d3091c59e26266f0adaba5",
    "signature": "0x05ef060a537b60a6c7e98713a37d358b4147ab3bf2df001cfa26950f92ec86e9471a4baf6c786090018bef13a70ee7e3e7d2da913ca013fef441bd24e75849e51b",
    "signer": "0x4280Beb252F5B6E28222D07E5fa4C7E2d276E283",
    "userId": "756677862"
  }
}