{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1499408317",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xd3b1d071d0f847e9bbbee4411aa9b95ac957ffe8d8f072b2dd795aa9e1a5bb02",
    "signature": "0x2a96f1c4acf0dcfb05afb05cc5afd19a0166b24b8fd84095c161ec5bd2794ec970566430dac506969de7820acf7b40eb6f87a5aa2bacc715b5aacf68086bffe71c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}