block template

{
  "bits": "1a4a5b13",
  "curtime": 1544816288,
  "height": 1522955,
  "previousblockhash": "f94fd2abdf71c172bf92e10d41c2cdc99562b2561c4f1e1dd381eaf1b311c938",
  "sigoplimit": 80000,
  "sizelimit": 4000000,
  "weightlimit": 4000000,
  "transactions": [
    {
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      "hash": "c1d01eccbfbcaf367efa15638bd577a8bd5890b6da77f867a0bdafd2f02ae3b8",
      "depends": [],
      "fee": 19584,
      "sigops": 4,
      "weight": 764
    }
  ],
  "version": 536870912,
  "coinbaseaux": {
    "flags": "0c2f503253482f6d6f6e61642f"
  },
  "coinbasevalue": 2500019584,
  "longpollid": "f94fd2abdf71c172bf92e10d41c2cdc99562b2561c4f1e1dd381eaf1b311c938-1544816288",
  "target": "0000000000004a5b130000000000000000000000000000000000000000000000",
  "maxtime": 1544823488,
  "mintime": 1544815342,
  "mutable": [
    "time",
    "transactions/add",
    "prevblock",
    "coinbase/append"
  ],
  "noncerange": "00000000ffffffff",
  "capabilities": [
    "proposal"
  ]
}