{
  "manageEntity": {
    "action": "Repost",
    "entityId": "489516877",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x3d85bba93c6d2bbe35ca39cbf63083dd18086e100353aab16a67394bea395d2a",
    "signature": "0xc87b21ac640a855cb63a7063930d7b573eb9f705c5b57f640855ed729e640c51307017a6beeff1355d37fb7034d832e7d4e8c092e3ce600e9b9afcd1866cc7701c",
    "signer": "0x64B0DA55A684D51d3EF114Fe644eac7db132fDb7",
    "userId": "121304325"
  }
}