Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1fdc59f78524f5da3b0118fd83706ba5c4fb2390434d8d03bd4562196afa0cbe' 
  AND token = 'EC9DFhuFXicgn5+o4o1bd7mv+u4VMpBZ4m3BdJw4gAw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}