Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0658575ab9b8386e00a82e8f79683e6ea780f12e6bc37130d0eac42db06bc000' 
  AND token = 'QDTzWhvOcolefg1HFrFGn1Muo6I+ze43ZtCFFqY+Ds0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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