Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'baa97dd2f8cadfd9d4b6ac300322e3bc10a4ab0373cf821610a985ac99b7012f' 
  AND token = 'NeWg047clAFT6lK0ncRyQP3XdGP7JGhjlHSil/044rA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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