Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2183548dfd67f5dacb422eb3cba3d872ba2f06a5e16d1568d3158bbe2eb9bdd3' 
  AND token = 'pTgsbL9jxKAYAbLD2JawJR0XnMJJ7dNRLpwbcSuaLQI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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