Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0c555ed0728942a63c5a8a11180118e5f796e3e6b6c4800d9317c41f438f3ebd' 
  AND token = 'Hrqk1Ra/5GanwRkx+rPep3wjOh/IuBUvu/hMuST+rOk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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