{
  "manageEntity": {
    "action": "Repost",
    "entityId": "637868579",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4a3b0b5fb38fd27d9056b7e57300452d7ce1353a6e32e2498c39c2bdfad19e0a",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}