{
  "manageEntity": {
    "action": "Repost",
    "entityId": "143700",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x19fb4fbcc629a2665786eec7c739a6846c304afefd6b0f14b4a597157da8e806",
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    "signer": "0xB18b1793545F350C53589f5BA9BfA143b7F15eE5",
    "userId": "417591612"
  }
}