Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32212efdbb8ad8666d77ffee8ef02fa49d31a07f9521f54297732a432fd869c5' 
  AND token = 'xpysja0E9rNjtKmCawt5Ia+iTMkvlwfDJuuc6f9ciw0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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