Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'ec4293df96428de6bb69a72f3f3eed953afe389d7e1c496d01ee6f3e49c69428' 
  AND token = 'a6otxydAkzCLo1avs6iWzrJq8CzMyKL5a/QEcOkYl48=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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