UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1Do4G3Qb2xWSZExmrugpeYHngPPzD96EUkxLDBzolPU=' 
WHERE 
  key_id = '9a4f547d0e7da521d5d1a93c12526ebee730551ce44dc997087288af331467c0' 
  AND (
    token = '1Do4G3Qb2xWSZExmrugpeYHngPPzD96EUkxLDBzolPU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034