UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sWaBZORrhyYEsfdcRwwWEO4Q2WyXUfQpquBrcJYE/cg=' 
WHERE 
  key_id = 'b990a85d785685e88eea180c123705bc472623ebef09635a8ff8d613601f5621' 
  AND (
    token = 'sWaBZORrhyYEsfdcRwwWEO4Q2WyXUfQpquBrcJYE/cg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )