{
  "manageEntity": {
    "action": "Repost",
    "entityId": "749708269",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x9e64c1b1ecc98f0add377efb083589af057d8648dbf6a17f4f005a4d1e8cb0a9",
    "signature": "0x7934cd22e91277608b9e870be13f8336ec3226f05493893f788531fdfc4f32960a2cc18f786dc629e8d45848feefb4d723c2192d2538a23dfea4f5dd2051a4061c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}