Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2455abe4b4c676853733f134d52730c45bf53d0b847e278226acec938e387698' 
  AND token = 'e7CIk8dzj3P3nxt2pDuQCHKEgv1grkMhK1mN/LRZ47U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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