Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64f07b02e73cc7a6008949e0e8f9b245f00adbc07699f505bfc5107df6223c95' 
  AND token = 'XzV5fpCo63V9nIqh3hqtcRJjX6NfoHC46itugjX2Nds=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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