UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rEsBl8Fii7zBHQ8N/RjoKWhO0YRZp995MXFTWnPumSk=' 
WHERE 
  key_id = '50bdf9c9ddec219800f98277c1badde8b6b70731e1a21552ceb85bef3698b527' 
  AND (
    token = 'rEsBl8Fii7zBHQ8N/RjoKWhO0YRZp995MXFTWnPumSk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )