Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e6969d4870cdf8f156634ea1e5bc198afcdb40cb6d1610ab842fbee10d1ea1f' 
  AND token = 'q47iUa3f8YRJUw9y+tEYSYp/9x6o8xEOtcPVV420w3s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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