{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "633924738",
    "entityType": "User",
    "nonce": "0x0a51a690cc937ebcb9bcd59c9b272038cb4d067e0fd707c909e3cb383060fc40",
    "signature": "0x02a7e562b74deb813bb609471d0604c063c0b1f9bd8f829604aea99d62d4324c31eab37e4c49e87c427b14af057961d9ee171f262c1ccb2d117ba5e1280eab771c",
    "signer": "0x9cC78fE5F75781C73C1C6D67045d681C8a4C6c9a",
    "userId": "149429484"
  }
}