Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1eefc08391701fce9306111cb85be7f19a7ad4583d4e5dea440b6e41da59995f' 
  AND token = 'tatKrv7RTH0e2DphK6OGvH3L4N5Wk5ziS6jPb1xJ5Cg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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