{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1573917639",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x64a051a7fafe77cbc63aa9cdedeecccb2ca4f353c3ea0b651c527a6731cd0b27",
    "signature": "0x122cc7476229507b7fdb8eee6fbb2e9dd3e6fc5c08502c5563ee9f998f41735810b7f9e79fbb05d2aee69c18567731d4fcab00cb610617e96128180e9cbba5eb1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}