Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '38ab9101b9489d4c4344f2d52ee07c1f205b50b395cb2cc0707ea3da4a7e8bdd' 
  AND token = '+lxHBT/0RgFFvuke/P55/yhqOPfwO8bfWb4CSoJbpWU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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