{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828616004",
    "entityType": "User",
    "nonce": "0x65e4a24088ac733304f1f003d08b1a40f056a43634d7b43a4672c6aa9384761f",
    "signature": "0x971e8a62e8eb8ed815c8960959c27dad8496a312d98a96902f2ecace9e79b7773348e35ece4ed06d9257c93e756fe28eab461f6f1064072fdbb801663bc2197e1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}