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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '658a46405be37a0cef63891db04a45cdaade9214955e4861704b482dd1733595' 
  AND token = 'f0IRNhcxaZ2iLJ/C2/P6AK6PKd2ygdsl/7EzHqYiOcE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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