Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0695e694b38541df12a6c53ebf68c4cdad2f7803314543b12972f4dcbe37bd56' 
  AND token = 'yAIoSe0flKVdEHNBcbsbfgEERAvvhF8H+eqK5d93Wvo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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