Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '957a5a4a669ef371e4b8d8e39f5d9fed7bf4b57a42e08e69b554c0087153341e' 
  AND token = 'TROMtrxkXXJVASNQKnYbiSZuA/83jdjM41Jf8n4D7Zk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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