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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '53605c72a230d6d60649e7e8036afae4057cebcf37b8b3b7a28b269b395ca56b' 
  AND token = 'W7a65yqj23Ip6dXnle/Ww1xGiGK1r17G6Sa61qTTNwg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}