{
  "manageEntity": {
    "action": "Repost",
    "entityId": "604574",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1f5991f6a7dd3104e8856c95abbdb7f783ae9a582d1f7d7f54797cf0a26e1145",
    "signature": "0x0f00dd7ad406f835408bb31b7dc1e6a4189eac29fb5ece5e30f84be5f564f5c01780b8db7a01de00f3f58834ef305bf68bfec4c8bdb9de50d12252b24fa749e31c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}