Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '854eda77587aeb593b863d0b3594ec4d34b71b6e2574bbc372b613e29e9e7955' 
  AND token = 'AGUda9EwPunBmAJxaqNeozGZQRA6CPnD0yzhTlOilvQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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