Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cc370e98bb07e38542de49be12e1e981160ac7785d3e540651b549004513782b' 
  AND token = 'dv06/UhHvF4fq7CP0iK2MuK7gZZEsocSgw0iIAVqrKQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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