{
  "manageEntity": {
    "action": "Repost",
    "entityId": "123421261",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x14269f236ad46e648c1214ca7e1b0161cfe3a5e44b8f58d684cd27774842a9f3",
    "signature": "0xb929ddc5786840383c58cf13885547e532cc34d28cd4c5aa9e17acddcacdef857de698e603a82c535969155fce2bb23560a6fe55e03f3a980693dc76896c5fe71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}