Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06bace360de8cf53bd8071200bd36413632148c13df9859689fa809db9b04766' 
  AND token = 'Io7C3kNYrIEig/pf8s5wKuAaYDNoUGZ5CFsxltfr2fw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}