Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62d15365651b6f71e46fee14fd22364188e63fe5460172d10436f88f73b4aa64' 
  AND token = 'VJJLe2DCCpDVDkgQVTBM/J7pUKvs17eb6hK091whxEQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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