Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1f01a432781e18d67ae2a18e8d965ac666e7e398aa5c447efe101fbaaad0b4d8' 
  AND token = 'EWyejhGJ9KCdcKYK7BEFER26jjGz8Yj/KAEnGfyzZjU=' 
  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"
    }
  }
}