{
  "manageEntity": {
    "action": "Repost",
    "entityId": "669258603",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x905e76c1b9c47063e041033a110590457a005b7f21fb05ed4438cba5263d4ddc",
    "signature": "0x7cbebd050bed0a33ff88f66293ccdae476ef8bacf1924469315136791e903e8b70aba5ec9d01236e03a8ca35f1664c582a00e582d1b2a0f73d4b132b91b566821c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}