SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'f80ddd109d7dc225238db7dceb968ae467d07d46646ae943130de225d2d75070' 
  AND token = 'hA/vE7VsVh0mzPYBD3fpjk2t+LLGOZ5B1k5lrR9YgEc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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