Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '032027e77b2ea6255d8ffa926e00613609858db16a988bb7df3b06d713d591f7' 
  AND token = 'cE1PBr8J9ciCLI2l+k9FbzZO5ZmfiN6MoSKgDu2KruU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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