UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nxzUq0hhPEOj3KGk05Edm/VnIr78801INaat9nVowbg=' 
WHERE 
  key_id = '2c81ac7752669aac7397a67623dab90bd264069f4863d200032625c23c935df4' 
  AND (
    token = 'nxzUq0hhPEOj3KGk05Edm/VnIr78801INaat9nVowbg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )