{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0xcf7f9332075d6734def347eb02ae2076ef11688605c4b6d1f9d380881460ef8a",
    "signature": "0x213ea588d47cda0da8c02ebf9b7a7ac5b8d82cf4efcba22b82dc21027357573118b412b5ab3c4ec7e3b116d7bc1c0fde9f31a0f718d2f91fe00023c8b11b18781b",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}