Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ee2c66e3ddca464efe23dfe23c98c6f83cf083bd48cee3d1729dd06b00e7922' 
  AND token = 'N5c4Q8t5spCfLsAqb0BoUh/LVJSc6EUrbsQx4fAYyg4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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