{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "748112319",
    "entityType": "User",
    "nonce": "0xf1aa37dd3a0aa1aa9e3316870af7620e402256198793fdf096623a1d288676ae",
    "signature": "0x7c27649a7be51c1bfc1f00683c4120706d7040997a1783f3e97b579451212cf178b5f4dbaf323b4ac1e20785089d6eb3794bed52971e65658e9c4035e7e668ba1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}