{
  "manageEntity": {
    "action": "Repost",
    "entityId": "638477086",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xc3372afe98120bc7f5dd57e0a1ac2abbfe588aa11bbdaa7f23f381c5a72299cb",
    "signature": "0xdbe0fff5159cbce4197b62be916d48477c03af0a1b0d786eb75646ce130ca5590dff06f86701d4ff384dee31c5c9d4526968dad4fb4f92699109a4b6ca3885361c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}