Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '713153c927c9fd9d523912d89041d62659a9593f273bea2b22ecf2f1e11a4708' 
  AND token = '9w0z+/Dmj81cmbgOTH1FDHQA9szEWy/O8YnRc0Z4zrU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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