Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4e5fca73cd455b11cf6e22c8454ca4faffefdff45709ec77c700f21285ea0ac6' 
  AND token = 'zCHcFBpYq5EUCON71zuneGhsty6fKlTMy/SbNcmDla4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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