Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9525be9354a16cb1e9b0ddf018a5db4fe4a13ef02926adc1b2e1a87072cd08b8' 
  AND token = 'KNc1201u36J7CqeYnkokcwxxhQvtkgXU3f4AIXFNkhI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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