Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '005c0cb6ea6cf774ff72955f57657876fbd861e636c1fcd242b7ff56beae7c1b' 
  AND token = 'yqFmNHIJwLPg0kOJbtcqLoEd3eeMCIzqHO3416D1r30=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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