{
  "manageEntity": {
    "action": "Repost",
    "entityId": "639784549",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x31a0d9518e14ddd8843d22ef9be554176722befb4fb401b75662349daafadc3f",
    "signature": "0x321257b54bf919b33c96659ccce5266acd6b40769d11ac7bf55fe3c312436c3e25554469e8f9387bfc8725fd4d55fccea0e1644e3aa32e88b6da3a6cf86112461b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}