Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '56d58324c0b18954c5135b34b844578fc9cb2d59c199e275b8d60395920fa933' 
  AND token = 'wvn1XUCMeiPFBgXaVncz6qSNX9IsFSUDWiKlESE7XaA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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