Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2744e7d943c0a234747a817ce2518914b319ba113cb743a72c7c8a5c3d188850' 
  AND token = 'x+1DlE4U6hPwRyuu1n9+5pcesdFNhzd/i9XKyXKD7RM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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