UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QYt40lxOa+akArhXdMxtvyxd+3PFXBXSnmrmqlKQqV8=' 
WHERE 
  key_id = '51509bb27026f0e06ab3250085ea389e5fca10412b58173712c188e40da19087' 
  AND (
    token = 'QYt40lxOa+akArhXdMxtvyxd+3PFXBXSnmrmqlKQqV8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )