Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb2c322743d6bebed7c587f9a4071c022e0de0c0c740cc096f63929361f9b9c4' 
  AND token = '8LGcZikAZCHyvVv323aLRwnCxTnlxkP8ijyfoJNJ2iE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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