Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96d0969a79698ad431302eff3bf7c3e0a7c1e3814e4538af4f14f1abf652acdb' 
  AND token = 'HHx4JR46Jjm36hsnm9J4Kw0zQbQs94P2sEun1w0TsWA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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