UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MQ4G1Dw/JIj8JmTI86VBNLnefST15yGEhQlVLv6cmxc=' 
WHERE 
  key_id = '79890856b911289cd832256c1fda02a603e8f4a7c24575a0002b0ed75ab05e81' 
  AND (
    token = 'MQ4G1Dw/JIj8JmTI86VBNLnefST15yGEhQlVLv6cmxc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )