UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'M+KLdq9XKSq/hwJKDzZoh6+frFBFrxrzitKxYhxKWpk=' 
WHERE 
  key_id = '554f33c5e3f710582edccd69b9eed7e3ed92670cf0d8474b7a02d67bb3a8c155' 
  AND (
    token = 'M+KLdq9XKSq/hwJKDzZoh6+frFBFrxrzitKxYhxKWpk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00025