{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "407477745",
    "entityType": "User",
    "nonce": "0x80b330bd37303a425c853888f50a9e88f8a7cd4405e940220ab549ab386adf34",
    "signature": "0x46683d8b313ecf42d559e91732265c23d00ae1106e5d3fbfb03c3db0deac4226595d76bd54ac338ac0ad23078dc963717077faf95056d4ce36588ed781b85ee01b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}