Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'abd7b1910b81663607df0e3724082f0c68af9f4463a4c37ed1c3747e9687f114' 
  AND token = 'FBUuLUh/lww8MLdhp286eeQj/xuBHtBuDprbr3ESpcE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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