Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '97b1f7034161d35429684444902cc225a56829ad734dd127aa78e752a0941d2e' 
  AND token = 'VfFVNvSbEd9uxJn8AWY7xlgqsPdEGddN7SPx2YKqghI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}