Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '091176e43b9f1cec9d294a2ac3747712c382fdb948c89eed6bf14dad671fd0e6' 
  AND token = 'zWBeMeu1FqIyoww01XXXIX4KnAK7dyfgQBW4K+eqgYA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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