Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7d0e4b1cc663ec66d609400338773948a7c080a8f3131b71e934251e53c52e3f' 
  AND token = 'Gwm/QGsFhT0L1X6zkzAB17YT5jEqHefurnRDRyfB5ww=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00074

JSON explain

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