{
  "manageEntity": {
    "action": "Repost",
    "entityId": "516328042",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa1a3bfff09d73907807be7bfd0733a2db43a73f8a2525af292b6cf6304a78d0a",
    "signature": "0xe9c8ca1d8e849b654a53146f7e57923cc9687116279422317ed1848f8cc7b8d53e29d7f5991db4765d8ca79ab07078418f4c633713addf49d440f91bd968d3f01c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}