Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0eef4070fe010e7430a63d6a3814e50a26f4568dad0a3d9fe09579efba7190a1' 
  AND token = '6nwZNhiNq9xfDvRzmVBDqJebjXKjV/WsVve9LR42A54=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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