UPDATE 
  cscart_june_setuplock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rMGr4KZUIyRpRTvcl0ExnnTFGbzb3BlIQvxvEzAfnCI=' 
WHERE 
  key_id = '250ef936cfd8fc26dc74869e9283bcb3470aa8bef1a99fea089e1e18eeaf63c7' 
  AND (
    token = 'rMGr4KZUIyRpRTvcl0ExnnTFGbzb3BlIQvxvEzAfnCI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034