Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e8866a934a4716b00390f6fba2ad93aca5eb0eecb493ec8f0c142abdc3f8520d' 
  AND token = '1ONIU4s6uvg5Pn7ZUWVGmoc4IYyQh62u9AXuf8ir8js=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}