Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e697ef1104a3e961150b31c5a46a3b58abdfb774bd577edeb32453dd4d9a33ba' 
  AND token = 'WKWh+wNZPSl3KVGosIJIV6XlT9VfWtIKujeZckafHPo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00062

JSON explain

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