Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8063297c7bf6200d7322789da331d287c3074f1f3737b5aec5a523c9cf72dd8e' 
  AND token = 'pLT7uhi3nsOyahhdR3pA3vrK30e97GrzlR4uKRKUi3s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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