{
  "manageEntity": {
    "action": "Repost",
    "entityId": "443321",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8d90a3847a37dc3b070ad003b02aa2c97823b05cc579903eacfcf8fcc5bb925b",
    "signature": "0x50fa182fa3bbc31bed69a2d59b0589f04093800f1b06b989ff8786cc7f3f5c875b909e427b0f10a5ce68375200b36c2a11234ea7e02fd9bacefa0c7a1d9eb6131b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}