UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RSLel293mKY69DID4U2ZwvofajM3uSW+CHDu5iGEjA4=' 
WHERE 
  key_id = '6a27d58764ba2f926d3597a514ce6ef51f1553a3dda0accf947954cdcd9994a7' 
  AND (
    token = 'RSLel293mKY69DID4U2ZwvofajM3uSW+CHDu5iGEjA4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )