Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a598ca2230640a55b306db95a27ad50878aecbee6674dc12b5a68d4a821b6f12' 
  AND token = '26EiGvu3zQqNtyzQTvULLGLIYJdlMKk5DnrpyEWVZ1A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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