Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '42295a388c8deedecc0e492111a927accbc07058bb3256ffb66fd12510c50f0b' 
  AND token = 'x0a3dQ35DeZ9N6SJ8xWEaqga344EsdPt1rYM0mJ2C/Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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