{
  "manageEntity": {
    "action": "Repost",
    "entityId": "399489092",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xdaff6ad64b687ae1d9aaff7a0d54fa6b6972ae91b53e4be6c065ce0f8ad6e67d",
    "signature": "0xb37de629e1d3ff194514c3538ce963ed156e849aaa0bbce97f7ed6763ab700a423a980b49a1387d6d9d6da357d376c6e49678c37afbf87f9fd13459b9ca84b431c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}