{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "914786391",
    "entityType": "User",
    "nonce": "0xfd4b1fc7fb19c4124100688ecfae35cb319720765b349186a00c707c6c6321d0",
    "signature": "0x13b030aa2fc8a2301fababb9c9601fc318a9351ede4ba49f2e8a43b0fc224ddb2fa29ab553f7ad218135be5742f148ab1d10012a349c7ba3f3366de007e04b101c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}