Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01a836d65c28367c11cbf92c0df2c5de0b79798fff8342a005c799d0ea8fcfb6' 
  AND token = 'YoSEyWm0xuwdbtPbKShuhahY63T7Hldt8b5XnPwMWrg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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