Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b505a879d0a6d3a310e7fdd93d39263ef20005719cef438d2b6505bac55913d4' 
  AND token = '01lZR+lsj74zp4qgankWb5xkWa5yOI0kYHp9+0ri5cw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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