UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4HjlKINlBWJOFjvLRk81ygLDnmgI3J9lYGy51C5+LC4=' 
WHERE 
  key_id = '5436af865b5b1c00a1da843631f6aa1538979a32099fb2bcda0e8fba44099b99' 
  AND (
    token = '4HjlKINlBWJOFjvLRk81ygLDnmgI3J9lYGy51C5+LC4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )