Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '84fcb4f1e2d7eaf6902097dec925f1b0c35d7115d97abc6387983a3a1fceac87' 
  AND token = 'maK2f5qIMgQ9Vc0lAYST0lzN0RPkDwiGy1gqsomE7DY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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