UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'oiLLVmIogpgGujbi4ZaWJ6FDi7ddM95hxtqOP787SWs=' 
WHERE 
  key_id = '993990571dfbf4706b3f9fa2c2748dbfbaf0d4668e31f58a1af9022265b9af1f' 
  AND (
    token = 'oiLLVmIogpgGujbi4ZaWJ6FDi7ddM95hxtqOP787SWs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00040