UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'm5ZqMOPFEgvgqRGnzsKAamI1cqPgdzdwu1jSRuHvqXY=' 
WHERE 
  key_id = '6d1c1987cb99dd38d56db9b69c3b798cb8c9e8eaa01844cc7624f1d95fa3698e' 
  AND (
    token = 'm5ZqMOPFEgvgqRGnzsKAamI1cqPgdzdwu1jSRuHvqXY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )