Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5f364d8a533f8f553ea1393a6f08f2a7719c331a7327214601d980f25368ecd9' 
  AND token = 'JJ01pB1gf2XtA9BSKTfdiDQULKu7AiYNAcLKnv6RiK0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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