{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621506",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x00ef09364bf6f0288130b98a799be13ff18480f502c8f18921a0561c315d5b79",
    "signature": "0xe21dd6a7e0c084562bea3a13ee81b80eb14b5ec621977fc8e4a99d4f9f3a491b62f83f53d1424f4f0690c47fa1d2bde800deed60388806e537afa33b81a4e7cb1b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}