Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '7b9db09adb90e5ab300163f05e7065bcc780e28e97a1f241c8884158ee6437d3' 
  AND token = 'Tv50hjBOvGhg4+xU6SAcEvQhfiQqO+q5xcEDljSPhMU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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