{
  "manageEntity": {
    "action": "Repost",
    "entityId": "646391042",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x57d0dcef0408044fe2f9f0d8afa381ed84911ae3bbc428f3195b60c56b7566f3",
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    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
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}