Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'be6335de2d4b0e6d7af92abf91dc3733e7b45c29036f62f045ee95f3d812227d' 
  AND token = 'U06Cpd03XImlsueoGwoGCnR4JEiwouQmpw2JuG/uQFo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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