Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd2739cff310194abca44f65b45ce5adbd0b454a2bad92ecbd8c4c49cc7071320' 
  AND token = 'tVPkG8zFSdV1fr81X9BXmhzlq98vxH1m2lt6pXnY9yg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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