Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '94a34d87628664d5b75008428917f4be88342e77d941db239ef46861343027b2' 
  AND token = 'e34k07rex5ueh1AsrrsebT0fzjKkWRHb/4hnzIXNPYc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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