{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1498717660",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x004bc04e4762e5cb420a5611fb4c6baef9bb281ba6d5f740d9d47452ff90e377",
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    "signer": "0x0f438E987Dc83db8901Ba8fE309b6A8B6a1ff762",
    "userId": "721617073"
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}