Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e53f929197208838bc1dbe62986ec9e28e317e8ac0bde4239e97ccf12e7e321' 
  AND token = 'JIh1T8f4kodnFROZi5kkJh+otbqnpKBOpUmQ/vPlwRk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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