{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1521657572",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xc3eb276c2ed012f9ab20a37161ddf7b5d26b18f5505e463e2ce7ab491b030f3f",
    "signature": "0xd91c78f99809e53a449475c6c8747922a566166a276f75104e5c154dffd6a2727ff135dc128306918fedcd4fd5cbc36e4b9c987b78f35d79f12a9a3a65b3607c1c",
    "signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
    "userId": "633924738"
  }
}