{
  "manageEntity": {
    "action": "Repost",
    "entityId": "751772",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xd509bb98432600db53dc9b7358979fe469c3a5454d14e716b1069c80b72e75d8",
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    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}