Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '060d99c4a346c8c99f1d8f550b61d16c226af5162ed9777ba1093c82489f9df7' 
  AND token = 'CBas0lb4ezxFKwPT+fjtFcXXM4Fwe4fIO42I63eyjvI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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