{
  "manageEntity": {
    "action": "Repost",
    "entityId": "639754",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xec3929b57e69ad79e20b3367ed4576710060017e73c83220c956520f1201c534",
    "signature": "0xe3b3625dfbac6f931f0f804ba50ee6338683a78dade6cdc60b1138ca802e759774c6e56f6345a67ad2cf2e218a4fa819f2c8e1a02d200b9ac0c3b6f923661f1a1b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}