Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd89c1eb216a851d01a748c906fe627f5d89848cbdf21c3e50737411b43209bc9' 
  AND token = 'hmMY3I8BVCbbZ+kE5o07TnACbyYMAMGH9ehAXjyuZmI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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