Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dff3ba471912330bf27903a6d4eb1f10106aea2204c6397aac2fc7fa98c7ef2a' 
  AND token = 'XDP595NYG/EgOWOnUeMq2XoNvZqYD3kFkPr7V/UNgEY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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