SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '24695330d90b5f6a1d787740958c2206ada5b0348a07cd22b38663b950c92562' 
  AND token = '3JPe/tBfKXGH84whv1Bz5FzNLlxYKyJKaxdc/pGIv/o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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