UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n21ERivtIaPX8pLOGxhS7vzE7orORgYP9XRDy8R1aik=' 
WHERE 
  key_id = '6e31645a6833acce9574d9ee9e69862ab82ac1ea990203bc104793fd48b152b7' 
  AND (
    token = 'n21ERivtIaPX8pLOGxhS7vzE7orORgYP9XRDy8R1aik=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )