Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1845ae45163c29da96754f44e182e6d5d8702b945615e96f1e00e11dc0fafb16' 
  AND token = 'VI/oUQMjY+7n23EliGccfFEcLPN1At/ahCq/GALXfYQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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