UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cNz3MMwWtqJUECM2FJAX4XbwgGF7fynmk2RTPve8JTk=' 
WHERE 
  key_id = '19ae4096086df254e137aaa0eadd46e4488115c28829f042ef350bb0f6fab495' 
  AND (
    token = 'cNz3MMwWtqJUECM2FJAX4XbwgGF7fynmk2RTPve8JTk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00051