Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dc4904c13eb19d550ea6a97e785db13cec26fd8ea23e05ec9152f61285140909' 
  AND token = 'aKPGBq8cjTKn9Y58oCv4IR/rcOJ6jDmfk+kuuNNFmoM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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