Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f801f760a79dc5f35e006444d221cdb0a8ad6fcedbade5b8b2cff4bfc93b72f' 
  AND token = 'QdqubJDio6g2VJOEpuXtJLx/4jft6kxJtb/52jL9wRI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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