Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06bd5fec9d2f946ce2ca897257a98fc3b74bd73ebf1819bf7019bd50b804dfc7' 
  AND token = 'xdY4gyEkoGsSUY5OLQ4PMAN6VaHLRU/1devQSeaJ0zA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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