Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '29d80ad6fdbf8a042dcd6c7eb0ecd161f4b88abdea76610a0e3e77faf314c6af' 
  AND token = 'hPEx6iUVEtg/xEiJK0FNUaDyo30yYf4/tDJbQ6AK5MY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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