UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Njh8e8KEDZkzY//oLt1r1sINAIfKF3rPojPTQK0Kr1Q=' 
WHERE 
  key_id = 'e0ffc48e61ec300991a2adcd2fb22d100a2490ee14b2464ebc1230d27de725aa' 
  AND (
    token = 'Njh8e8KEDZkzY//oLt1r1sINAIfKF3rPojPTQK0Kr1Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00037