Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '92a07efde93ca1e421d8c52ed73d506e94233d5d560ef63a3e99cad83946a07e' 
  AND token = 'xaV5Pzh0qGH9b83B644tHsGJTPn12Fm61twipa4Wbao=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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