{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21903",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb4698c3840c5d49ef9b0acb6925024f8e5c574bbe7109f610edeee1f2804a24b",
    "signature": "0x5cfce217bd9da707cd113d56f785de90b6eff9707c7fd57de7e48df1ef361ad6739b4ef3b2241e59b8eb1736c05955682691d33a737a3cf9e07370a7cdfa06ad1b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}