UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fb8WHG/+Q21eo42H5v4IphuDXVeoxuflfvhNx1DdHeU=' 
WHERE 
  key_id = '03a6f01549596e25d1ee66f0e8e5c586c3a3e682105fc028d0f6310a3fe7ce4b' 
  AND (
    token = 'fb8WHG/+Q21eo42H5v4IphuDXVeoxuflfvhNx1DdHeU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00031