UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QeQJ+7fP6lwvDov66tYRkxN87v5nCyIyDiyjI2utDzg=' 
WHERE 
  key_id = 'f1fa69925e20a1be73cf3a6a24980053fb60ae4b8f9ccc5c1a4e35b139f7ac4c' 
  AND (
    token = 'QeQJ+7fP6lwvDov66tYRkxN87v5nCyIyDiyjI2utDzg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00047