UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5ei9hl7a0xMSLDWqAr7EDzknkn7v4RWsFuw18saM7Go=' 
WHERE 
  key_id = '955e9c43db6c4a82c41cc5b5ad386b406bca28ebf81c4b99571e7a0f23f7fa9b' 
  AND (
    token = '5ei9hl7a0xMSLDWqAr7EDzknkn7v4RWsFuw18saM7Go=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )