{
  "manageEntity": {
    "action": "Repost",
    "entityId": "678689816",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xdb2b17d21837ebfd32de980b614a0d3015759f373204e10e58c814d359c4dc1d",
    "signature": "0xc4bb158918e4b596af442c10009366e0762244775daaa8b8a018aafcfce7b8fa299948cd62ec2eed741e9212303de554a2777103183685921769792404935d4b1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}