Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e485b16de1785ab398dec72305ce903e03b92aae2e60ef7856d08d2a65ea4841' 
  AND token = 'T0BM9VkGVIyUxwy8AJEJG0FakoX/kNQW8S9HkoQUqxM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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