Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fe9938a8309393084278718d8f2944728858c5299221905943856b181a6ef5a2' 
  AND token = 'Hes+eb/ygdUXiZswmCsHpkzy/1ZT/LSXwKY7K8Jruxk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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