{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18932",
    "entityType": "User",
    "nonce": "0x4edb01814203fd53487a518dc808975b0c0faa8089732306615c526b49858240",
    "signature": "0xe0b8f6bf4e31980c4ddecc79d1bb0939998613e870b4e7fb3b7e907e28f78a467704bcf80bbb7d35c0ca14875fe8506362d64ea00134fbeacc1bf9047f3eb54e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}