Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '144d2892cc6b08eb002d9d6412b0d69c4a371ab79ca5d7426ed40f283ac666ed' 
  AND token = 'O5RXSOM1yGjFW5eETvdrJYB9r1HQ5FplXU4NNdACxVE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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