{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xc6e7935d42f3ded23dec58f81656fd4a5928a8c242194814a5ff666c14ec96c8",
    "signature": "0x898be222e6d023fcd8c559704dc9b1a8558e286d1a7ed19f69644b119c3c64897861b65127a8213004bc933c99fd41a010068f0bc67aa6b3a96e63e264133d8d1b",
    "signer": "0x62d4816874d70b2233b74F1A103Bc646d08CeCE0",
    "userId": "724707352"
  }
}