Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08d96bab95c32bf555c9e5785b3efdd5554c4a7744546d70cc5dff4448e71d6a' 
  AND token = 'rXmZWFiv04ODkozFe6DQtONXOGxIpu9zgYw/TIIzcsk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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