Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8b2cdee10a3d33524192846f4b7fc4bc2f62cae6fcd9a001d88d3318ef3b63da' 
  AND token = 'cZQUUUSd9Qr8ej2VpSeGHyX7Uaf4Qev/GXana/jZciI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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