UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QaZ7T1xtvVoDDvsV6rOxncoUsgqjki+bT8+KMzeHyEg=' 
WHERE 
  key_id = '83543d41fbe1340fae382e28babed1a09b99a13e6d082099d68ffc1d182d4f9f' 
  AND (
    token = 'QaZ7T1xtvVoDDvsV6rOxncoUsgqjki+bT8+KMzeHyEg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )