Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '02673b6787635f2c7d3522138b9a2535dd5260b250d7a05b21ee82e73313fed1' 
  AND token = 'rdqc5sG7J7XkRcVGvD/7nFnulDir0C17zK/FHKUsLnk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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