UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n4MQ8SQdZLp9/n6MJiyzK4ydD7HVwdxHGCG9TkGez40=' 
WHERE 
  key_id = '0e973c563ffd0f042215e7986b4869ca1c83185e4e7a33d01eaacd5ec3924bd2' 
  AND (
    token = 'n4MQ8SQdZLp9/n6MJiyzK4ydD7HVwdxHGCG9TkGez40=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00030