{
  "manageEntity": {
    "action": "Repost",
    "entityId": "449981670",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa90122f808744e1f644156af578d9d1dd1483ca8e99ca27b2b01a9967aec5209",
    "signature": "0xbca8524702866a5847c2d7f3a89429cbdcf805c7088a8759dac816884b5bdddf4a1b9d0ae0eaa73cb551388d7d700ee1d4c29cbdaff0f3d6213cb6b984265cf21c",
    "signer": "0x8FF85C5AA450a88f13FbD5170e24E2a3eFF32518",
    "userId": "311829956"
  }
}