Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4e87940c53306bf2291a83c998908309513b97a7e643bcfb20c4a7a15d17e816' 
  AND token = 's2ASloDmpjOh1jLzJcKRKZ2mTyEzYRmjjlLF0ZORYxA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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