Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95310771e75be7461459eeb1141db6043225b781605831377c6136d307905ed8' 
  AND token = 'U3VYQo4avq0UW/lACtOsveLraQr902Y7i5jUnm98L/Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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