Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '43d3c2947e04e3f15ab32655f764fb197d48429fb9c74bb4e65ae224895fefc6' 
  AND token = 'kUaxAUE2DzdArifHZUCAfNdbcMF0/F/amzoAj8ejquY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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