UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 't55KWTNicLG3/hP2i69383odAuAWsbOtgrtrfRvS+gY=' 
WHERE 
  key_id = '819e26d244c0b86b05d8a7648612b4f2586bc3da5bb48de83467ab846fb1245e' 
  AND (
    token = 't55KWTNicLG3/hP2i69383odAuAWsbOtgrtrfRvS+gY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )