Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a02d13868f7017a060038ddbb141e8da46acf0c940ff6ad0b3c3c0210a5e1ed1' 
  AND token = 'zm5Qd001P4Ig2rFXFu6pC0ISQtoMBFzHlzUBLIboIcQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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