UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bK9rB4qNLDtk+MHCoyhWwrbmsc5NCvBwGrmCeBfyeOc=' 
WHERE 
  key_id = 'c4ea4234b8261c2c4f4b4f471b7adef91cf69ea03451e6c424e21f7125e6c49b' 
  AND (
    token = 'bK9rB4qNLDtk+MHCoyhWwrbmsc5NCvBwGrmCeBfyeOc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034