SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '33cefb45ef257ea0c613574c5cfd27e5d87ceb5d4a92849e1857dc1664656243' 
  AND token = 'YZ+IttKWNn3Q+iVJF5wOmHPF22KS2/pofJCADKdnCsw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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