{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228434",
    "entityType": "User",
    "nonce": "0x3453af19c50c5909c941664fdfbd8eb62b5284c65850eb581f5492f105c20463",
    "signature": "0x5f87b01e7c4d47bcac0922b11a3f263cd0910fbd8d4ac79c7334957c620237c6470e4b3ecb05fe4859321943851318cb1e3b5b1f5cefef3db17ffec98d6ec0f11b",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}