UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zzj92HxtEL7pb518mlJaZ2LZ0kGvjnRsEm8x9WjguFg=' 
WHERE 
  key_id = '21c99bd7110b98e88592376c0ee86170bfe340489a436f0de525d361483d5942' 
  AND (
    token = 'zzj92HxtEL7pb518mlJaZ2LZ0kGvjnRsEm8x9WjguFg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )