Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd64a45b8862e19e30834bd8308412f004ecdd5c4ce04966a9b060dae80a80128' 
  AND token = '+VZ9zxWXBy38Z9KT4ASb5xzB4q4RINkSR9t4yOMY1M0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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