{
  "manageEntity": {
    "action": "Repost",
    "entityId": "857738269",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x3d02fe42897f8da4e6054a8123ef5fbd1049e1bba716305c3949801b77240d89",
    "signature": "0xff1a24927825dafd6e04537e75686ff56aead8fb0cc0f08c2b74ce7c20b02e2e01f4236242d254ccf050b662042029498af8ecd72615e440b79c8bffe4a748cb1c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}