Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0e0966808fa9c5e2085521c62186989883b753ed8a871c2e7e5c97c9d168077d' 
  AND token = 'bdzwpFDqOwEs/wLd7gwC2aGFg2Tor4P82fudd1D2T/s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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