Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'a5e8a83aed0c5606c65726c2a70cabcbf8f9451a4ac7292dce6adeaa4bc81488' 
  AND token = 'hqEpBSmKcDcwJfUWn7p+223N2bDDAb60BAoiPxNGuCY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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