{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x272641a34147e0d4420fe62eed216c908cede38fc86626b2e49ea18f61c7346a",
    "signature": "0x2fa73cb5f097619428ffa209586a97b59a424138e1f3fd0f4f4b2839c195573c7dedadd410f978a7310bcdeb7c2769c88692884df56d6e160acf4502e04066ed1b",
    "signer": "0xaF260D56498a2d61b204aBc5CAdCbEc98465d11b",
    "userId": "219894195"
  }
}