Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd8bedc8f9c991456a88096a66511a5bad851a715c4fd977fc5b47233e358e662' 
  AND token = '4ycS0e0wwV/5VL530GcH8/21VW2x4yF4O253sCM0y+Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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