UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r8tZpqDqSkmPift0x4EL0w1pzksNm/9lG7dcUYyMOYE=' 
WHERE 
  key_id = 'ca593d170077af20f019521cbe864b554ff3d0d8ac0b9cfe259c9873639603d5' 
  AND (
    token = 'r8tZpqDqSkmPift0x4EL0w1pzksNm/9lG7dcUYyMOYE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )