UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Kkkn3rjf+/RZxg3DbiZtE+0KyWx9D//dEf85NCLJzbE=' 
WHERE 
  key_id = '369c2e811b2bb7e0ad10d15e191e0b64c5f47a2f41b828a9da9a9ff7a63cf22a' 
  AND (
    token = 'Kkkn3rjf+/RZxg3DbiZtE+0KyWx9D//dEf85NCLJzbE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029