Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0796101caa7c76acd28e0f19c7cd438f09d66b35590e48a7a548255316e73525' 
  AND token = 'wl4slj2v0l7ngyO91UYN8Yp+HnKevZv+i0cdVUfOXWo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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