Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '164a2c69e4d6eff216e93077c2be307e7575f5697c5a7a8e88f8ca71829110aa' 
  AND token = '2BZZHH0rxoTRv0+A1JZmX4oL88Z7SVbUqL6JQvVDVEE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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