{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621737",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x390dad737b3d6f000cd55c0f0e24724088d3fbc4fac151e9a856edfc9c250636",
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    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}