Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8274fa5389581551a6919c872528deb83031b9ee90795d659e0cc68b9e466825' 
  AND token = '/jpbhXNe0uX6i23XehM8j14Rv3Kvz1XxAYaokXXN/rw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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