Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '109afa72c191cf00a968c6768491f547b003f7740a1649b8d14633acc3d53689' 
  AND token = 'fVtnwnCa2lqXWc5EKop7L/6jAFgum6/EnJ7ae2FM2A8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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