Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72a36d7810524d7becdc905f7885a16728a570a2d0df83e90723257ba58505fc' 
  AND token = 'imsf4OCz8Fe7e2LvYZ+t4q7UyZWkiT/Vz6zPPOV9s+A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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