Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '08be544bf779f99407139f8422ea7a2bafd08e061541349eee2ccfbc70a82208' 
  AND token = 'yKoF3Q9oy8RYasxVjZIni6Ce/NgiSjY7oTFFdSd3tcg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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