Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '445d1d101b403d726c59e4bc9be932e7c8260f92fe36cc33dfc9baf764413ebb' 
  AND token = 'NMg1KEHERddjCvWutD3qU+NXPBNo7/YF2Nl2lmIya+8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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