UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BrsYvzEMKRs1MiWEXan0GLho7euBs5ypOtzJz8mAbho=' 
WHERE 
  key_id = '51a557251040701e6ab421b75ec2601d424884222b1d36bf3e52ba2db3a5513f' 
  AND (
    token = 'BrsYvzEMKRs1MiWEXan0GLho7euBs5ypOtzJz8mAbho=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )