{
  "manageEntity": {
    "action": "Approve",
    "entityType": "Grant",
    "metadata": "{\"grantor_user_id\":504451367}",
    "nonce": "0xff9730ae62240e8a10cf17416b00362345192729d31cc8bef80f20249a2d0c32",
    "signature": "0xd98ecdef9ac0ee6fb491b2349fd996a8f9adb1a2cd0894d0d63ddedf0c346c275f0201ba331b4be52114584afe75eb927c27e59779ec9686b6bb4c5dd72f354d1c",
    "signer": "0xd41Af68ef04Ef65877a44995C9A9b85A4493eDBf",
    "userId": "732384438"
  }
}