Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '87c29a1f7f95f2eae96acb53ccbef4de993f8c1599ea9abf61afc46257326b4d' 
  AND token = 'Y3beMVNJ4CPmbAYGqSfQhr+8tVh77BrU8a+qLYgus4A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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