UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L9fGlJg8P02hFK9aNbwhFqSYJrmRs5eLgAEaPxPNHJQ=' 
WHERE 
  key_id = '870a4dc3cabf22a03de3bbad3030c20a21a38724980d3df8484b6842228bbb97' 
  AND (
    token = 'L9fGlJg8P02hFK9aNbwhFqSYJrmRs5eLgAEaPxPNHJQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )