UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BklPe5Vlw4MwF84ljvIz+1Ju4eFIRRGlHpNalAzCKys=' 
WHERE 
  key_id = '2542d4b973e3fc734217e815c21e980e488c96e47bc406675de2f7cf9cc61c11' 
  AND (
    token = 'BklPe5Vlw4MwF84ljvIz+1Ju4eFIRRGlHpNalAzCKys=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )