Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '81628b164f3e1b4d3545f7e6044fa036480111f5510be72e87187475c6ebe71f' 
  AND token = 'srMhQo1tg4tSO8voSpz22aU2PpjAE4FcRLnLDUSWCOc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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