{
  "manageEntity": {
    "action": "Repost",
    "entityId": "399062518",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4799c8dc3105843dfdbcbe685f0b349a691b80745a5659fa72a616628ae08448",
    "signature": "0x53af884de610675949afcfc41132ef17b01b4a3f68c2c3da4c86c2566c82423f3b83c82e952d9c802394411dbfc618b5e53f8fd9eafd401f35954f332a690f261c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}