Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e3009a09ca374c226812326cc6141c44fec82ed7163a5c9bc37987d7c4b50c8' 
  AND token = 'vT6std5pWSmWmHDbxh2csJ1I8OCQ87OCllo0ppftO3U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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