Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a700d43e45dd71fc3c4ec5b68198e745f9a153e1fd97690de1e9259b180c2472' 
  AND token = 'tyh4YDJ1wmlcQcMZBbq0wURrFdnPHfmKMFrv92XcdGk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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