Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '418152fb676a2c36830c2e359fbc02b3aa9b94cbd0e8a5e718cbf12ecbb631fc' 
  AND token = 'Q0LfB8yOwS9on8/hGpka2bvpUIfZNYt/hMgcun2UMZ0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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