Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '382214516a96f71f21a26c2fa174cc39b3dec788c234d7a36045f32f88999646' 
  AND token = 'qLNqQV6Zt48in4I4P/wCXJxlMjkF1KLNKw2aOIdJPRM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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