UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Lj4Qq+39U5dmCCrQEYOJ5T624cymNyy8TpQkAvaVOek=' 
WHERE 
  key_id = '15a6d47b1eb485cf58c74fc46e091140f3c7e43cfead5781dbbb501b057b29c9' 
  AND (
    token = 'Lj4Qq+39U5dmCCrQEYOJ5T624cymNyy8TpQkAvaVOek=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )