{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1503708569",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa865231938ee1db20f0c6fe68759aaa12c388dc3d35bfea418d0619943ad64d7",
    "signature": "0x44bdc948fbb9c8d95e1a6b54c897cdc84df510ea83d84d641b20c4f65b9ecafe1697fa7ebc45cd5346a0211743efb1b35979bf2fbb29cbd4f9f9fc3822a582b01c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}