Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9949aae12d3614fdd02123a95a486dadce4599b46d9a517c200a3084d0582e3a' 
  AND token = '5NvPbUZXQ4ZAZdoG6Wx2rKrcMWZipxj38so2lgRL1YE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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