Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '619350a7e9aca654275dce94813a2eb35de998742686e5c02004791901354055' 
  AND token = 'smBeNSDDdgftDIiICKjl3ASToJ9DBPmAS/p5c1NQ+U4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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