Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ba1944b86cc51ed5623e1f30dd6cd9343505ce552655ff24ae496ec8c1f5219d' 
  AND token = 'AmFEWA+WBtJLp4AXuvvQBKQVYY6FavraPISWNRI7KiY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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