{
  "manageEntity": {
    "action": "Repost",
    "entityId": "516648250",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xd952d8db652e7a15a46d20a60ba89ec3707380fdeb09650759fd6d1b3cd81a43",
    "signature": "0x37a55600a3c4fda2fa041ada5a244738a73a03cbb13f104f1d030037eb6210bf21cf9e243312d59d092f7ef00d3c1d3189fd429b6ca6baa5760fde31c6e0c99b1c",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}