{
  "manageEntity": {
    "action": "Repost",
    "entityId": "390298592",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa1cf1a4b3b5105708097e33fdb5db0bbf8a2e738728c904325004a6e20bc3bcc",
    "signature": "0xb74dd14f4bbc205a7decefdec3d9fbc34348ccae3a3e4a5ec432305feb451bce081f2aa9273a8c4a4d9b8983af7999509a0f00da2acfe1f612db53b122e1297a1c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}