Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'acce113c53fc533aa981efb0efeb48bb8d066e91cc87ffe52121b84748c9257e' 
  AND token = 's+D0cUvGT4e/QtxGy1IFTkwuCZz60Ra/yBXaWjiMepQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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